15gal nano for seahorse?

[SeaHorse_Fanatic]

Seahorses require frequent feedings & produce a lot of waste/nutrients into the tank. 15g is probably doable but less than ideal. Planting it with macroalgae to help suck up the nutrients will help. Regular water changes or good skimming will also help keep up the water quality. Twice minimum feedings daily, preferably more, means a lot of waste for a small volume of water.

Also, take out some of that Live Rock & put it in your sump if you have room to give the seahorses room to move around & explore. From the pic, it looks like very tight for space in there.

Anthony