Hello! I have an oranda goldfish in an 88l tank, I do about 20-30l water changes per week and I have an aqua clear 70 filter and use prime as a water conditioner. Since the 14th of April my fish has been laying in the coner of his tank so I did a water change and added aquarium salt. The next day I discovered signs of fin rot. His fins were clamped and had like a white film patches over them. Also his pelvic fins had turned red. So I ordered esha 2000 for fungus, finrot and bacteria and I did another water change. When the medication came the white patches have moved to his head and his tail has been receding. Also his skin under his armpit fins had turned red, he still lays on the bottom of his tank and doesn't respond to me when I tap only when there's food. After doing the first treatment the redness has gone down. I'm on my 2nd and decided to put him in a 45l tub and I'm doubling the dose as it recommends it for very sick fish. I'm on the 3rd day of the 2nd treatment and his tail is much worse the rot has now moved onto his dorsal fins. The white patches is growing and it's starting to look abit more bumpy and textured in some areas and he's not eating as much anymore. Also his fins are still clamped. He still sits on the floor but is a little bit more active and I think the whiteness on his head has cleared abit. Idk if this is working. Is there any other good medication? He's a tiny bit more active but the fin rot and white stuff on his fins aren't decreasing.