The Planted Tank Forum - View Single Post - when to add fish?
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Old 11-07-2012, 08:31 PM   #7
Algae Grower
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Your substrate should have enough ammonia to start the cycle. Even potting mix has ammonia in it. You have to make sure you have a bit of circulation in the tank so that the bacteria colonies have O2 to survive and multiply. I say keep an eye on your ammonia levels...
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