i was thinking of setting up a 55g that i have for sea horses. would this be an adequate tank for them i saw on seahorse source that they need a tank at least 18 in deep so it would meet that but what else do i need to consider that may not be obvious? i have plenty of pods from other fuges that i could transfer and let them reproduce in there. and i also have a bunch of cheato and caulerpa in another tank and i was thinking of getting some mangrove plants will all these be ok with the horses? how many would i be able to keep? i would like to be able to keep two pairs and seahorse source says i can but i wanted a second opinion. the species i was looking at were H. erectus, H. kuda, and H. reidi which would be best? this will be my first seahorse tank but i have kept other delicate species like sharks and stingrays. so i am not a beginner but like to get to know the species i have. :) thanks in advance!