fatheadminnow
Fish Aficionado
Do you mean you cleaned the filter media in Tank water? Not tap water?RanjohnsHave you ever cleaned, or checked to see if your filter flow is still sufficient?
It could be getting clogged a little, and that could be a reason why your nitrites are still high.
You could rinse it out in tank water, and make sure everything is functioning properly. Yes, on Apr. 17, when I did a 60% wc, I removed the HOB, left the bio-wheels in the tank, and thoroughly cleaned it in tap water.
Have you also been checking the pH? It is steady at 7.2+
This morning, 22 hours after dosing ammonia to 4ppm, nitrates were at .25.
-FHM