hey, good choice, i love them and think they are very fun to watch, i personally have dwarf seahorses...cheaper, but much more work. It is recommended to have around 3x the seahorses height. There are many people around here on the thread that have them or have had them like teresaQ, rykna, poniegal, etcetc....just make sure you do research, they are a lot different...not many suitable tanksmates as far as fish go.