New tank

[glolite]

Hi guys. Have been busy for a while trying to cycle new tanks. My big tank of 90g has been fishless cycling for three weeks now. I added 5 drops of ammonia for each 10 gallons until the nitrite spiked after a week, then reduced to 2-3 drops per 10 gallons. The nitrites have rised from 0.25 to 0.5 over the past week. Should I reduce ammonia further or do a partial water change? Thanks in advance for any help.

 

[rdd1952]

I am cycling a 75 gallon now and about the same place you are. Keep adding ammonia to bring it back up to around 1.0 ppm. Ammonia should be dropping back to 0 in 10 to 12 hours. The nitrite will stay very high. Mine is in that phase now. My ammonia drops back from around 1.0 to zero within about 8 hours.

 

[glolite]

Excellent, just what I wanted to know thanks loads