Hi All, Previously, I was doing a 2 gallon water change once a week. Then I noticed my betta's tail tips getting black. When I did a nitrate test it was at 5.0ppm. I started doing 2 gallon water changes twice a week. Then I thought it would make my betta happier if I lowered the filter flow from full power to half and turned off his air stone so the water would be calmer. A few days after, I noticed his tail was getting thin and transparent! Now I'm doing daily 4 gallon water changes to my 10 gallon tank to help heal my betta with fin rot. I add Boyd Vita-Chem with each water change and soak the food with it twice a day. Some days I soak the food in Seachem Garlic Guard. I've also turned the filter flow to full power and turned the air stone back on. I have been doing daily water changes for a week, how long do I keep up the daily water changes? Also, should I be vacuuming gravel at each change? I don't mind doing daily water changes but I'm worried that I may overdo the cleaning and send my tank into a mini cycle! Can anyone share their experience or give advice on this? Thanks!