People seem to think seahorses are much more difficult than other marine critters. In my experience, this is quite untrue. I currently have a 65 gallon DT with a 20g sump. I feed my ponies frozen mysis once per day ( plus any pods they can find) I do a 5 gallon wAter change every Saturday and I'm only running a pair of HOB filters in the sump plus a UV sterilizerI've had erectus, tiger tails, And dwarf seahorses all in a community together with everything from tangs, rabbits, triggers, and even a dwarf lion. I currently have a pair of yellow adult H. Erectus who are quite happy to live with a blue- stripe pipefish, A mating pair of clowns ( Orange and a caramel), a citron goby, a trio of zebra banded dart fish, a mean little neon dottyback, a golden Midas Benny, a talbots damsel, and a couple of red tail butterflies. The horses come to the surface and readily compete with the faster eaters and catch their fill. Just to be safe, I squirt an extra bit of the mysis into a wad of macro algae so they can forage for it later. Send a reply to this thred for any questions or tips, I'd've glad to share more of my experiences.