No relief from Nitrates
Ok a week later after multiple 50% water changes, still have 40ppm Nitrates. Nitrites are at 0, Ammonia .25ppm, Ph 7.8(which is what it's been). We are not over feeding, I've checked AqAdvisor and my filtration is more than adequate and my tank is at 66% capacity(counting adult sizes and currently we have young fish)
I've read online that adding a bubbler or bubble wall would help. Is this true? We are desperate for relief from high nitrates and all these water changes.
PS. I have tested the tap water and the tap water after treating with dechlorinator, it's at 0.
Help!!!