Originally Posted by Aquanano130
I am looking for help with my new Aquanano 130L. It has been cycling for 21 days and seems to have come to a stand still. My Ammonia is between .25/.50 my nitrite is around 2.0 and my nitrate is at 40ppm, these readings have stayed the same for nearly a week and a half, I have been using 6 danio's to start the cycle since day 4. And used tape safe and fluval bio enhancer to start it off. My Lfs
has recently recommended denitrol which I have been adding for the last 4 days without change in my readings. Is there anyone that can help me with this PLEASE!
Quit with all the additives. You really don't need them. All you need to successfully cycle a tank is a dechlorinator and an ammonia source.
Your cycle isn't stalled, it's simply processing the amount of ammonia that's being produced. If it was stalled youd be seeing a steady increase in ammonia suddenly start. It can take up to 2 months to get a cycle finished so just keep up with water changes.
You should be shooting for your ammonia and nitrite below 0.25ppm and do a 50% water change whenever you are seeing it higher than that. As well as nitrate below 40ppm.