- Mar 8, 2016
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Please help me, I'm trying very hard to save my fish and it's not looking good. every winter I bring my 5-10 year old koi fish (about 15 of them) inside and keep them in a temporary pond which is around a 200 gallon pond liner. Never have I had a single problem until recently. My fish are lethargic and laying on their sides on the bottom, then they swim like normal when I agitate them. Fins are super red, every day more and more are laying on the bottom when I check on them. I am noticing cloudy eyes and a fuzzy film on some of them. Water quality was terrible when I checked it a week ago, since then I have done water changes, added salt, stress coat, using stability and added a bio filter. Turned the uv off. I'm testing water daily and all levels are now good, but fish are not getting better. When I first started noticing this, all levels were off the charts. So obviously they became stressed and compromised, and now are having all sorts of other problems. The temp is probably around 60-63. I'd be grateful for any advice, I feel time is of the essence and I'm losing the battle here!!!