yes or no to seahorse

i need all the advise i can get on wither or not i should set up a seahorse tank yesterday i saw a 10gallon hexagon tank for seahorses. they are my favorite thing in the ocean i even have a tattoo but i do not want to mess it up in anyway and i really want to do it right so if you can please tell me every little detail and all the steps to do everything right please help me with it