I am about to pick a tank up that has had an outbreak of flatworm (not ideal, I know!); can anyone give me an idea on what may be the cause of this, plus a cure? I will be taking the rock/corals/fish out first (I have another tank to put these in). Can I treat the rock with something? I intend dumping the sand, then totally disinfecting the tank before I start setting it up; what would I use for this?
Any help would be greatly apprecaited!