Originally Posted by Dayna
we had our spike and nitrites and nitrates are 0. but ammonia is still high.
Do you mean that the nitrites and nitrates have risen and now diminished or only
the ammonia has spiked so far?
It can generally take about week (sometimes less) after the innitial spike in the ammonia for the readings to subside. It really depends on the amount of die off and/or what is being used to fuel the cycle.
If the tank has gone through the proper cycle start to finish, then I would suspect something has died, overfeeding or you have added additional LR
Can you expand on it a bit?