Thanks, Sarah! Can we link to your site, o' Goddess of Seagrass?
Here's a link to Shedd's Aquarium research paper. It has lot's of info about tank size, breeding requirements and stuff specific to each species:
Seahorse Husbandry in Public Aquariums
Bob Burhans was a speaker at our club last year. I got to pick him up from the airport and taxi him around! Of course, I brought him to my house! He is the Curator at Scripps Aquarium in San Diego and very knowledgable. Here's his research paper:
Scripps Aquarium Pipefish and Seahorse Husbandry & Propagation
I found the ultimate ID guide at Project Seahorse. You have to go to "about Seahorses" to get there. Sorry I can't get it to link direct to the ID guide!
Project Seahorse ID Guide
Here's Marc Levenson's Website. He has a ton of great info. I really appreciate his photography skills!
Take Great Pictures