mriridescent

Speaking of the tank cycle, how do u know if it's finally done, because my ammonia just dropped to 0 like overnight. Does this mean that it's cycled?

Llama

Ammonia = 0
nitrite = 0
nitrate = High

Then water change to reduce NO3

mriridescent

thanks 4 yur help

Blub

As long as the ammonia & nitrite levels are 0 and nitrate isn't above 20 - your tank is probably in a healthy state. (I say 'probably' because those levels could be there, and the pH could be 1.5 which wouldn't be healthy!)

Lucy

Your question was moved to a thread of it's own to avoid confusion in the other thread.

hkirchen

What are the other readings? Nitrite must also be at zero showing some nitrates not to exceed 20.