Biology

  • Seahorse and Damsel Fish

    The Complete Beginner’s Guide to Seahorse Evolution

    By Tami Weiss | Date posted: 01/10/2014

    When you look at a seahorse, it’s easy to wonder how such a bizarre creature could come to be. The seahorse’s behavior and appearance is so radically different from most other fish that one can’t help but ponder how they … Continue reading

  • Colossal Seahorse

    New Giant Seahorses Discovered; Under-explored Islands Home to Mythological Colossal Seahorses

    By Tami Weiss | Date posted: 04/01/2013

    Marine biologist Dr. Laura Saury, a member of the University of British Columbia-based Seahorse Project marine conservation team, has identified the world’s largest known species of seahorse. Topping out at around 7 feet in length, the Colossal Seahorses are straight out of greek mythology. Continue reading

  • Not So True Facts About The Seahorse

    Not-So-True Facts About The Seahorse

    By Tami Weiss | Date posted: 01/22/2013

    Ze Frank just did a wonderfully funny video “True Facts About The Seahorse”. I love the True Facts videos he’s been doing; especially since they’re mostly true. Mostly. (Seriously, watch this; it’s some funny stuff.) As good as the video … Continue reading

  • Yellow Seahorse

    Year in Review: Seahorses 2012

    By Tami Weiss | Date posted: 12/31/2012

    As the new year looms, I wanted to take a moment to reflect back on the news and research about seahorses and their relatives over the past year. Much has happened, and as interest in these strange fish continues to … Continue reading

  • Biggest and Smallest Seahorse Side-By-Side

    The Biggest Seahorse Vs The Smallest

    By Tami Weiss | Date posted: 07/05/2012

    It’s only been in the past decade that we’ve discovered the ocean is teaming with pygmy seahorses. This is largely because they’re so small, they went undetected for years. The smallest one Hippocampus satomiae, described in 2009 is just a … Continue reading

  • West Atlantic Pygmy Pipehorse

    The Pygmy Pipehorses of Cozumel

    By Tami Weiss | Date posted: 03/20/2012

    One tiny seahorse relative flourishes in the waters of Cozumel, but often goes unnoticed. The West Atlantic Pygmy Pipehorse is a diminutive, slightly bent cousin of the seahorse that rarely grows larger than 2 inches. They hitch like seahorses, but look more like pipefish with mostly straightened bodies. Continue reading

  • Two Seahorses, Hippocampus breviceps, photographed during a dive

    What’s Love Got to Do With It? The Truth About Seahorse Monogamy

    By Tami Weiss | Date posted: 10/04/2010

    “Unlike most other fish, they [seahorses] are monogamous and mate for life.” – National Geographic It’s a theme repeated over and over again in the media and in popular culture. The idea that seahorses are monogamous and mate for life … Continue reading

  • Leafy Seadragon

    Seadragon Fact Sheet

    By Angela Feng | Date posted: 03/07/2010

    Seadragon Facts Habitat: Rocky reefs, seaweed beds, seagrass meadows and structures covered by seaweed and algae. Only found in the waters around Australia. Diet: Mysis shrimp, plankton, small crustatceans and fish Size: 12 inches to 18 inches Species: Two species, … Continue reading

  • Pot Belly Seahorse in the wild

    Seahorse Fact Sheet

    By Angela Feng | Date posted:

    Seahorse Facts Habitat: Seagrass beds, coral reefs, sheltered lagoons Diet: Mysis shrimp, plankton, small crustatceans and fish Size: 1/2 inch to 14 inches Species: 80+ species, all of the genus Hippocampus Threats: Habitat Loss, Overfishing from Traditional Chinese Medicine, Overfishing from accidental … Continue reading

  • Worm Pipefish

    Pipefish Fact Sheet

    By Angela Feng | Date posted:

    Pipefish Facts Habitat: Reef, Lagoon, Seagrass, Estuary, River Diet: Mysis shrimp, plankton, small crustatceans, insects, worms and small fish Size: 1 inch to 26inches Species: 200+ species, part of the Syngnathidae family that seahorses belong Threats: Habitat Loss, Overfishing for Traditional Chinese … Continue reading

  • seahorsePink

    Meet the Strange Syngnathiformes

    By Tami Weiss | Date posted: 11/21/2009

    Syngnathiformes is the order of highly-specialized predatory fish known for their unusual appearance and adaptations. The most well known is the seahorse, but all of the syngnathids have similar features: long, narrow bodies that lack rings but are instead have a bony exterior that makes up armor, and small, tubular mouths used for sucking in prey. Continue reading

  • Hippocampus bargibanti on host gorgonian

    Pygmy Seahorses

    By Angela Feng | Date posted: 08/04/2009

    What is a pygmy seahorse? Pygmy seahorses are part of the genus Hippocampus which all seahorses belong. They are minute seahorse species found through the world, most less than one inch in size. Most species have been discovered within the past 10 years. Since then, they have become one of the most popular creatures for recreational divers to seek out. Continue reading

  • Potbelly seahorses can have upwards of 1000 babies at a time.

    Happy Father’s Day! 10 Seahorse Facts About the Best Dad In the Animal Kingdom.

    By Tami Weiss | Date posted: 06/19/2009

    Seahorses are often referred to as the best dads in the animal kingdom – and for good reason – they’re the only animal where the male gets pregnant! That’s right, it’s the men that take on the joys of childbirth in these equine fishes. Continue reading

  • Weedy Seadragon in Public Aquarium

    Seadragon Resources and Papers

    By Administrator | Date posted: 06/01/2009

    More information on leafy seadragons and weedy seadragons. Papers and websites. Continue reading

  • Seahorse Anatomy Male Female

    Seahorse Biology & Anatomy

    By Administrator | Date posted: 07/12/2007

    Seahorses, and their relatives the seadragons and pipefish, all belong to the family Sygnathidae (pronounced sing-nath-I-dee) from the Greek words syn meaning together and gnathus meaning jaw, which describes the tubular, fused snout that is common among relatives of this … Continue reading

  • Not A Worm!

    Fish Stores Say The Darnedest Things: 20 Misconceptions About Seahorses

    By Tami Weiss | Date posted: 06/22/2004

    Seahorses are shrouded in as much fantasy as fact, and much misinformation exists about them. Much of this is perpetuated by ill-informed fish stores, some by the media sensationalizing the almost unreal seahorses. Twenty of the most common misconceptions are addressed here. Continue reading

  • Hippocampus barbouri

    Recognized Hippocampus Species and Common Names

    By Administrator | Date posted:

    There are currently around 40 recognized seahorse species. Seahorses are part of the family Syngnathidae (pronounced sing-nath-i-dee), which means “fused jaw”. All seahorses belong to the genus Hippocampus. Continue reading

  • Pipefish by John Clark.jpg © CALYPSO

    Pipe Fish

    By Gerald Jennings | Date posted: 03/01/2000

    Members  of the  family  Syngnathidae,  more commonly known as Pipe Fish, can be found throughout the world both in brackish and marine waters. Coldwater species can be found around the British coast and there are seven species that have been … Continue reading

Conservation

Aquarium Care

  • Seahorse pair

    Seahorse Canada: Canadian Seahorses At Last!

    By Tami Weiss | Date posted: 02/22/2014

    Canadians have long had trouble getting true captive bred seahorses. CITES has had the unfortunate side effect of restricting access to Captive Bred seahorses to Canada, and while a few overseas companies do ship across the border, it’s a difficult … Continue reading

  • Seahorses In a Tank

    A Modern Guide to Buying Seahorses

    By Tami Weiss | Date posted: 04/15/2013

    Are you considering purchasing seahorses but are unsure of where to start or afraid they are too difficult? Seahorses do need a specialized setup, but are not nearly as hard to keep as they once were. Advances in breeding have … Continue reading

  • SereneSeahorses

    Seahorse Deathtrap

    By Tami Weiss | Date posted: 08/09/2012

    The seller of this aquarium kit eventually listened to public concern and took some advice from breeders, including myself, on how to make a kit that was suitable for seahorses. However, it was an unsustainable model and they went out … Continue reading

  • Refugium/Sump Combo

    Don’t Sump That Seahorse! Refugiums Are Not A Happy Seahorse Home.

    By Tami Weiss | Date posted: 03/21/2011

    Seahorses don’t belong in refugiums. Yet this is one of those frequently reoccuring questions that comes up repeatedly by many people considering seahorses. I’m not sure what the appeal is – perhaps the knowledge that they need a specialized setup, … Continue reading

  • So You Want To Set Up A Seahorse Tank

    By Laurie Smith | Date posted: 01/02/2011

    Laurie Smith gives us a brief overview of what is needed to get started with seahorses. So you want to set up seahorse tank. Welcome to the obsession. The Tank The fist thing I recommend is to buy the largest … Continue reading

  • Hippocampus kelloggi

    Net Pen Raised Seahorses Part II

    By Felicia McCaulley | Date posted: 03/17/2010

    f you ever see a seahorse for sale at your local fish store like the one pictured here, pass it by. You’ll be saving yourself money and heartache. When you see a seahorse at your local fish store, you’re most likely to see a Kelloggi a.k.a. “Great Seahorse,” which is the most commonly pen-raised seahorse. It’s not because they make great pets or because they are hardy. Continue reading

  • Seahorse Cages

    Net Pen Raised Seahorses

    By Felicia McCaulley | Date posted:

    Some of you are new to seahorses, and you may be wondering, “What’s the difference between True Captive Bred and Tank Raised/Tank Bred/Net Pen Raised?” These terms are very confusing, even to your local fish shop. Learn what Net Pen Seahorses are and why you should care. Continue reading

  • Seahorse Aquarium

    My Thoughts On Seahorse Keeping

    By RayJay | Date posted: 11/08/2009

    RayJay, an experienced seahorse aquarist and mainstay of seahorse forums, shares his insights in to how to keep seahorses successfully. Continue reading

  • Keeping Seahorses as Pets! Photo courtesy of shellac

    10 Things You Should Know Before Keeping Seahorses As Pets

    By Tami Weiss | Date posted: 04/13/2009

    1. Yes! Seahorses can be kept as pets. As long as you have the proper aquarium set up, and take take proper care of them. They are protected by international law, but that means their trade is regulated, not prohibited. … Continue reading

  • Newly Arrived Dwarf Seahorses

    Dwarf Seahorses As Pets

    By Tami Weiss | Date posted: 02/23/2009

    Dwarf seahorses, Hippocampus zosterae remains an ever popular, easy to care for aquarium pet. The basics of keeping them are quite simple as long as you follow a few guidelines. Continue reading

  • Captive bred Hippocampus ingens by Eliezer Zuñiga Villarreal

    Where To Buy Seahorses and Pipefish

    By Administrator | Date posted: 07/01/2008

    Here are some sources online for captive bred Seahorses. You can often have your Local Fish Store order captive bred Seahorses for you if they don’t have any available. It is strongly advised that you always purchase captive bred seahorses over wild caught, as they live longer, arrive healthier, and are easier to feed. If your store is unsure,pass. Captive bred pipefish are a much harder find, but at least one wholesaler in Australia breeds them. Continue reading

  • Blue Striped Pipefish, Doryrhamphus excisus

    Flagtail Pipefish In The Home Aquarium

    By Tami Weiss | Date posted: 11/09/2005

    Flagtail Pipefish, named such because of their large, brilliantly colored tails that they use in courtship and territory displays, is one of the free swimming types of pipefish from the genus Doryrhamphus and Dunkerocampus. The wonderful thing about these pipefish is that most fair quite well in captivity, unlike many other pipefish species. However, there are still some obstacles that need to be overcome when keeping these interesting fish. Continue reading

  • Tigertail Seahorse in home aquarium

    Keeping Seahorses: Three Keys to Success

    By Tami Weiss | Date posted: 09/12/2005

    It wasn’t long ago that seahorses were considered “impossible” to keep in captivity. Many believed they were only suitable for those with massive resources such as public aquariums. If the home aquarist were to attempt to keep seahorses, they needed to live near the ocean so they could collect food on a daily basis, and even then, they only met limited success. Continue reading

  • Seahorse Aquarium With Artificial Corals

    Example 29 Gallon Seahorse Aquarium – Basic

    By Tami Weiss | Date posted: 09/11/2005

    One issue that new seahorse keepers struggle with is what exactly they need for an aquarium setup to keep seahorses. Having never kept fish, it can be difficult to pick out what precisely is needed to get started. Here is a list of basic equipment and a price brake down, to give an idea of the specifics of cost and equipment to get started. Continue reading

  • Pipefish can make very interesting and unique seahorse tankmates, although they pose some of the same problems as wild-caught seahorses.

    Seahorse Tankmates: What’s Safe, What’s Not?

    By Will Wooten | Date posted: 06/25/2004

    There are quite a lot of animals that will do exceptionally well with seahorses while still allowing the seahorses themselves to thrive. To guide seahorse keepers in stocking their seahorse tanks with non-seahorse inhabitants, this article contains a list of species that are appropriate for keeping with seahorses. Continue reading

  • Not A Worm!

    Fish Stores Say The Darnedest Things: 20 Misconceptions About Seahorses

    By Tami Weiss | Date posted: 06/22/2004

    Seahorses are shrouded in as much fantasy as fact, and much misinformation exists about them. Much of this is perpetuated by ill-informed fish stores, some by the media sensationalizing the almost unreal seahorses. Twenty of the most common misconceptions are addressed here. Continue reading

  • Lined seahorse in aquarium

    Seahorse Care Guide

    By Lisa Darmo | Date posted: 10/17/2003

    As many aquarium hobbyists know, seahorses and related species have different needs than other marine fish. This article was created to assist anyone that is interested in keeping these fascinating fish. Continue reading

Breeding

Foods & Nutrition

  • Thawed frozen mysis

    Frozen Mysis Part 1: The Quest For Quality Mysis

    By Tami Weiss | Date posted: 05/11/2014

    Feeding seahorses is always a challenge. Finding quality frozen mysis shrimp is just one part of this challenge, but it can be a big one. This guide covers some of the issue faced when purchasing frozen foods for seahorses. Continue reading

  • Copepod detail.

    Foods for Breeding Syngnathids

    By Tami Weiss | Date posted: 09/18/2012

    Seahorses and their syngnathid relatives provide some interesting challenges raising from birth. Although they produce larger young than many marine species, they often ignore foods that have been the standard for raising marine fish. They must be supplied live food … Continue reading

  • bbs_decapsulate_01

    Decapsulating Brine Shrimp Eggs

    By Marc Wong | Date posted: 12/17/2009

    Marc Wong of Ventral Fins shows how to decapsulate brine shrimp eggs, leading to better hatch rates and cleaner brine shrimp. Continue reading

  • diy_bbs_01

    DIY Brine Shrimp Hatchery

    By Marc Wong | Date posted:

    Special thanks to Ventralfins.com for giving us permission to republish Marc’s excellent article. Every time someone asks me to to describe to them how to build a brine shrimp hatchery, I have to repeat the same instructions over and over … Continue reading

  • My favorite, spot at Starcross on the river Exe Estuary.

    Collecting Shrimp

    By Dave Isaacs | Date posted: 06/24/2009

    Republished from International Reefers with permission. Special thanks to David Isaacs for allowing us to reprint his mysis collecting tips! Editors note: This instructions are specific to the Exe Estuary in England, but will be applicable to most shorelines with … Continue reading

  • Seahorse hunting food

    Live Food Suppliers

    By Administrator | Date posted: 08/29/2008

    Finding live food for syngnathids can be difficult. Here is a list of mail order and online suppliers wordwide. If you know of any additional suppliers that should be added, please add to the comments below and I’ll add them to this list. Continue reading

  • H. ingens eating enriched bring shrimp

    Seahorse and Pipefish Foods

    By Tami Weiss | Date posted: 06/25/2005

    Seahorses are ambush predators, feeding primarily on crustaceans, mostly shrimp. In their wild state, most seahorses only eat live food. (Although H. capensis is an exception and known to feed on dead food in the wild). In our aquariums, Wild … Continue reading

  • Adult Brine Shrimp

    Raising Brine Shrimp

    By RayJay | Date posted: 10/09/1999

    To date, I haven’t found a simple way to raise Brine Shrimp in dense growing conditions in a short period of time, although I’ve seen many postings claiming to have simple methods that work. Low density growing is fairly easy … Continue reading

Disease and Health

  • Hippocampus barbouri

    Temperature and Seahorses: A Commentary By Dan Underwood of Seahorse Source

    By Dan Underwood | Date posted: 04/30/2010

    Dan Underwood of Seahorse Source talks about the problems with seahorses and elevated temperatures and why in the home aquarium seahorses do better at lower temperatures than they are found in the wild. Continue reading

  • Seahorse showing signs of snout rot at the tip of snout.

    Snout Rot

    By Will Wooten | Date posted: 06/25/2004

    Snout rot is the erosion of the skin around the snout of a seahorse. Similar to and likey caused by the same pathogen as flesh-eating bacteria, Vibrio spp., snout rot can often be controlled with pre-treatment before the seahorse is released into the display aquarium. The disease may be cause either by fungal infection (in which case the snout will be pinkish) or bacterial infection (in which case the snout will be white). Continue reading

  • How to hold male seahorse for evacuation

    Pouch Evacuations in Male Seahorses

    By Tami Weiss | Date posted:

    Evacuating the brood pouch of a male seahorse may be necessary from time to time if a male’s pouch accumulates excessive gas in the pouch. At first, this may seem like a frightening task, but its really very simple to … Continue reading

  • Post-mortem photo of seahorse with flesh erosion disease.

    Flesh Erosion Disease

    By Will Wooten | Date posted: 06/24/2004

    The purpose of this guide is to provide a reference, or starting point, in identifying and treating some of the most common diseases and medical conditions of seahorses in home aquariums. It is not, however, set in stone; constant scientific … Continue reading

Advanced Care

  • Pygmy Seahorse

    Syngnathid Symposium 2011

    By Tami Weiss | Date posted: 11/12/2011

    The the second Syngnathid Symposium was held the first week in November in Chicago at the Shedd aquarium. 92 delegates from all over the world gathered to discuss current issues with seahorses, sea dragons, pipefish and other syngnathids. Topics discussed … Continue reading

  • Weedy Seadragon in the wild. Photo courtesy of saspotato via flickr.

    Reproductive Husbandry of the Weedy Sea Dragon

    By Kristy L. Forsgren | Date posted: 07/04/2009

    Due to the difficulty and cost associated with maintaining sea dragons in captive environments, reproductive success and rearing of hatchlings has never been documented. During the summer of 2001, two weedy sea dragons became pregnant at the Aquarium of the Pacific. Continue reading

  • Seadragons in captivity.

    Leafy Seadragon, Phycodurus eques

    By Paula Branshaw Carlson | Date posted: 05/29/2009

    The Leafy seadragon, Phycodurus eques, the most ornate member of the family Syngnathidae, has long been known to aquarists as one of the most beautiful and unique of all the fishes. Found only in Southern and Western Australian waters, the Leafy seadragon is a master of camouflage. Named for the dragons of Chinese myth, this relative of the pipefishes and seahorses is named for the leaf-like appendages that adorn its body. Continue reading

  • From left to right, back row: scale, air pump, sterile water, 28 gauge syringe, syringe and catheter, cup of liquid food, "dummy" seahorse, antibiotic, clove oil, small vial Front Row: Pan with tank water and clove oil, air line, syringe and catheter with fresh seawater, pan with fresh seawater.

    Sedating, Tube Feeding, Injections and CPR for Seahorses

    By Tami Weiss | Date posted: 02/20/2004

    One particular problem serious seahorse keepers and breeders face is lack of veterinary support. Some vets are willing to try to help, but most turn seahorse keepers away due to lack of aquatic animal experience. The hobbyist is then left with the choice of letting their beloved pets waste away, or attempting to try advanced care techniques themselves. This article is for those hobbyists who feel its necessary to go the extra mile in supportive care for their seahorses. Continue reading

Diving

  • Seahorse and Diver

    iSeahorse Launches to Track Seahorse Sightings

    By Tami Weiss | Date posted: 10/19/2013

    Project Seahorse launches iSeahorse.org website and iPhone app to help track sitings of seahorses around the world. If you’re a diver or just spend some time near the ocean, please consider signing up to help gather data about seahorses. Every sighting helps! Continue reading

  • West Atlantic Pygmy Pipehorse

    The Pygmy Pipehorses of Cozumel

    By Tami Weiss | Date posted: 03/20/2012

    One tiny seahorse relative flourishes in the waters of Cozumel, but often goes unnoticed. The West Atlantic Pygmy Pipehorse is a diminutive, slightly bent cousin of the seahorse that rarely grows larger than 2 inches. They hitch like seahorses, but look more like pipefish with mostly straightened bodies. Continue reading

  • Pygmy Seahorse

    Pygmy Seahorses Code of Conduct for Diving & Photographing

    By Tami Weiss | Date posted: 07/05/2011

    Pygmy Seahorse expert Dr. Richard Smith just released a great guideline for divers and photographing pygmy seahorses. Pygmy seahorses, the inch and under relative of the seahorses most people are used to, are beloved by divers around the world, and frequently over-loved and even harassed by divers looking for these diminutive treasures. Continue reading

  • Hippocampus breviceps in the wild. Photo courtesy of Saspotato.

    Diving With Seahorses

    By The Seahorse Trust | Date posted: 08/01/2010

    Divers looking for seahorses need to be extra cautious not to disturb these sensitive animals. Here are some guidelines and best practices for any diver looking for and observing seahorse in the wild. Originally written for the British Seahorse Survey, it contains information useful for anyone that may encounter seahorses. Continue reading

Resources