Hey all I need some help please. I have a nano tank and been set up around a month I have some lr and a clown fish . I test water evrey day ammonia is 0 no2 is 0 but no3 is 25mg/l I make 15 percent water change yesterday and 30 percent today tonight I check and still 25 mg/l I bigin to wry noy they dobt go down
Thanks
Thanks



