Guys my tank has been sitting for at least three weeks running without any fish in it and a bunch of live rock. Since I lost all of my fish, the LFS
recommend I let the system run for 21 days just in case the cause of death was ick. This way the ick would not have a host and will die off. Anyway the three weeks is up, I want to get some fish real soon and my question is.... when I throw a fish in there, is it going to be a shock to the system since it's been running for 21 days without any fish? Or no since it's been up and running for three years?
(By the way is this true what the marine biologist is telling me? Ick has a life of 21 days and will die naturally without any fish to host on to?)