Still overwhelmed by your breeding mandarin fish and pipefish said:The main problem with having all those fish spawning is that you have to feed them a lot. Feeding the fish a lot destroys your water parameters such as nitrate build up which adversely affects the corals, especially the SPS which is why mine don't grow very fast (as some people have pointed out) You can have great SPS corals or not so healthy fish. It is a trade off and I prefer to have spawning fish. I also have to many fish. I know this and know that is why my nitrates hover around 40. I think I have about 25 fish and I think there are about 7 or 8 spawning pairs (but I didn't count) I feed the fish some live black worms in the morning then at night more black worms and either clams or mysis. That is the only way I know to keep the fish spawning and IMO immune from diseases. I can give away half the fish and have nicer SPS corals but they kind of bore me anyway. I prefer LPS because of the movement and I really like to have my fish spawning as that is the condition fish in the sea are in all the time. Pregnant. As I said, it is my tank and that is the way I like to run it.