I find quite the opposite. I don't mind hatching the bbs, but if the dwarves you get are not CB then they are very prone to disease and dreaded parasites.. You also have the possibility of getting hydroids with dwarves and the hydroids are very difficult to get rid of (short of using Pancur sp?). Also since dwarf seahorses are kept in such small tanks, water quality is harder to keep up. You also have to watch all filter intakes when you have fry or smaller dwarves. They can get caught very easily in filter intakes (esp. fry). I find my Erectus to be much easier to care for but that's JMO.