Hi, I had 2 mushrooms, 2 discossomas and 1 ricordea in a soft coral tank, they all died of a sudden, but my other corals are fine. The only thing I did different is that I started dosing a suplement called "Coral Grower" from salifert about 2 weeks ago and they started to shrink and died. I did the dosing according to it's instructions of 5ml per 100l per week. So now I´ve stopped because I think that might have killed my corals. I'm really confused of why and if that's what actually happened. Please can someone help? Thanks.