My tank has been running for about 10 months now. My bio load IMO wasnt/isnt heavy at all. For the first few months I had 4 8" pygos. Now I have a 7" ray, two dats no more then 7", a 8" peacock bass, and 10" bichir.
About a month ago I cut up hostas (I think that is what they are called but those common house plant vine) and put several in my tank and now the root are everywhere.
I think my problem is my tap water. Believe it or not my tap has an ammonia reading of about 1ppm and a nitrAte reading of 40ppm...