Add the the Chromis and my butterflies fishes from the 2 ft tank to the tank, the nitrite spikes up to between 0 to 0.25ppm for the last few days. However, the ammonia remains at 0 ppm.
It is common, when you start to add fishes to your newly completed fishless cycled tank, it will increase either the ammonia level or the nitrite level or both due to increase in bio-load to the tank. Fishless cycle will grow certain amount of beneficial bacteria (BB) as the BB needs constant supply of ammonia to survive. The more ammonia in the tank, the more the BB will grow provided there are enough filter media in the tank.
Present tank:
Work hard to bring down the nitrite level, it is quite difficult. I am dosing Microbe-Lift Nite-out II to see whether this product helps to bring down the nitrite level.
Unitl now, fishes look alright. Will continue to monitor the nitrite level everyday. I am thinking of adding Microbe-Lift Special Blend if the nitrite level still maintains at 0.25 ppm.
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