Hi, I’m new to posting on a website like this but I need advice with my 15 gallon fish tank. I have 5 glow fish & my ammonia, nitrate, and pH levels are all very high. (ammonia: 8ppm, nitrate: between 80 & 160 ppm, & pH 7.6) However my nitrites are at 0. I tried to do water changes to help fix it, but the last one I did seemed to have made the water worse. I’ve cut back feeding to once every other day. I believe I messed up the water when I cleaned the filter (I swished it all in tank water) & did a water change. All my fish are still alive currently but one seems to be acting strange. Please help, I don’t know what else to do. I’m very worried for my fish.