It will drop to zero after about 2 years maybe? Then your bacteria of ammonia and nitrite would go back to zero... Then when you put livestock in, fishes will die cos there's no more bacteria to convert ammonia to nitrate to nitrate.
Angel Keeper
Wah lau! Where I dare to show of my frags when others are showing off their colonies! Anyway now is not a good time... My frags bleached out...
Angel Keeper