dwarf eashorses reqiure alot of care. they have to be fed baby brine shrimp 3 times a day. it is also recommended that they are kept in groups, in a 5 gallon, or smaller aquarium for the beginner as to not fowl the water with their food. in having the smaller aquarium, it is even harder to keep the water in good condition. the link that roka gave is a great place to get info on any seahorse.