Hi All,

looking for some advise, I purchased Waterlife Octozin hole in the head treatment yesterday. I have a 650L discus tank and somehow after 5 yrs of keeping discus i've managed to get hole in the head. I treated yesterday as per the instructions 1 tablet per 22.5l ( some 28 tablets) my question is shoud I, and what % of water change should I do today before the second treatment? i normally do 75L change per day.
Thanks in advance for your help