Straight R/O water no phos no ammonia no nitrites no nitrates "no idea" 
I know what caused it but it dosnt clear up I had a koi in it for two weeks while pond was getting up grade 5/6in koi its been two months now with no improvment all thats in there now is 12 1in oto cats that are not helping.and one female betta. tank ran perfect for year before???????????







I know what caused it but it dosnt clear up I had a koi in it for two weeks while pond was getting up grade 5/6in koi its been two months now with no improvment all thats in there now is 12 1in oto cats that are not helping.and one female betta. tank ran perfect for year before???????????






