Dwarf seahorses are very small and would become a meal for most fish, if not bullied on top of having proper filtration i.e. no powerheads, any overflows guarded by sponge or minute screening, etc. Your food supply would consist of cyclop-eeze, nauplii, and possibly minced mysis on a constant basis (at least twice/day feedings). Other than certain gorgonians and other soft corals, I would not house with lps
due to coral aggression and feeding responses. The seahorses should also be fed at least twice daily.