moonstreak2005
Aquarium Advice Apprentice
My daughter has a 29g mixed tank that has been established for over a yr. Nothing new had been added for several months. All of a sudden the tank is overrun with very tiny flat purple worms. They are all over her corals and the corals are slowly dying. I looked up flatworms and although they look similar, I can't find any that are purple. Any idea? Any known way to get rid of them? She has tried putting a target mandarin in there a couple times, but they die in a day.