Hi all, so I recently bought a 6ft tank, due to unforeseen circumstances I unfortunately discovered the presence of ick. I raised the temperature and applied salt and ick treatment, I have removed all ornaments and plants from the tank, I have done frequent water changes and cleaned the gravel.....a few of the fish were covered in ick but now it has I’d say halved but some fish still look like they are covered in white spots. Can anybody tell me what I’m doing wrong or should be doing next? Thanks