quikv6 I agree, but I read conflicting info online, some said to use water from the tank to avoid shocking her, some said use all fresh. I compromised and used half and half. I think the small heater I put in there (it doesn't maintain a temp sadly) may have contributed to the nitrite increase. I have an airstone in there but no filter, bc of adding meds.
I'm getting an antibiotic today and will do a complete change both for the water quality and to start her fresh with a different med. I will also increase salt from 1T/gal to 2T/gal, which was also suggested, since she's been in the 1T water for four days now.