It's definitely improved.
My suggestion is cont with water changes every 2-3 days with a dechlorinator. No more salt. What's being done is working.
Big thing is it's gotta eat. I believe it has to do with low temperatures. Tropical fish in low temps will have a decreased metabolism and feeding. This has to be corrected. Once it starts to eat it'll get better much faster. So get a heater.
My suggestion is cont with water changes every 2-3 days with a dechlorinator. No more salt. What's being done is working.
Big thing is it's gotta eat. I believe it has to do with low temperatures. Tropical fish in low temps will have a decreased metabolism and feeding. This has to be corrected. Once it starts to eat it'll get better much faster. So get a heater.