So I had a clown fish for about 2 weeks everything was great. Readings were 0-0-5 and sg
is 1.025 so water was in line. So I added a royal gramma two days later my clown was on the bottom gasping so I removed him and put him in a hospital tank and medicated he didn't make it through the night that was last Friday yesterday I noticed it didn't come out to eat he was skiddish like that but today I got home and apon inspection of the tank I found him dead. So there is something infected my tank. I have 4 different corals in the and a few crabs a shrimp and a snail they are all doing fantastic. I have had no kind of spikes. Now there is no fish in the tank at all at this point my question is how long do I run the tank with no fish to insure I don't infect new fish with whatever is in my tank?
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