How much No3
remover and prime do you dose per day? Prime will do nothing to reduce the nutrients. It will only detoxify it temporarily and should should be used for fish stress or fear of ammonia/nitrite/nitrate poisoning. 2 bottles of RSM No3
remover (carbon dosing) in 8 months is way too much if it has even been that long. Overdosing that stuff would be creating problems rather than fixing them. Ive used it, but in moderation and it works good. How efficient has your skimmer been? Carbon dosing usually sends skimmers into overdrive if your tank is heavy in nutrients.