75 gal cycle w/ ammonia

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Speed

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Jun 14, 2013
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I'm trying to cycle a new tank, 75 gallon using liquid ammonia (fishless). I've done my homework so yes it's pure ammonia ( no surfactant, scents or any of that. Running 2 HOB filters (75 & 55g filters ). I've added bio- boost to help the process & have plenty of media in filters. I added the ammonia about a wk ago (6/26) to 3-4ppm. I test daily with masters kit, but ammonia still isn't dropping & nitrites not rising. Granted its been a wk & I know the whole process CAN take 4-6 wks but looks like it would be dropping some. Am I getting impatient or is this not normal. Looks like I would see some sort of change by now.
 
I think this is normal my cycle was taking ages so i got mature media from a friend maybe you should try that if you want a fast cycle
 
I think this is normal my cycle was taking ages so i got mature media from a friend maybe you should try that if you want a fast cycle


That's good advice. The cycle will move faster if you "seed" your filter media with some established bacteria colonies.

Also, a word of warning once you get to the Nitrite stage - do not let the Nitrite get above the 2-3 PPM level (hard to determine on the API scale as it kinda stinks). If the Nitrites get too high, the cycle will stall for weeks and weeks.

Ask me how I know . . . :D

Patience.


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