So a couple of days ago I saw 2 of my fish had ich. I tried fishing them out but was unsuccessful. Now my goby is completely spotless ,my royal gramma is out in the open like normal, and all my other fish look completely normal. I did buy a UV sterilizer but it got delayed until today. Is it still worth using and what other procedures should I take now?





If it was during spring or summer it would be possible since my family doesn’t use as much electricity and the heaters in the tank run less.