Join Date: Jan 2004
Location: Las Vegas , Nevada
Cycling planted tank is a bit different than regular fishless cycling. If you plant densely in the beginning, you may not see any ammonian nor nitrite spike at all. Plants use them. So, it's actually safe to add some fish slowly a few days or a week after you plant your tank. It's not considered fully cycled but won't harm the fish since there are no spikes. However, you have to start with many fast fgrowing stem plants to make sure they use those nutrients.
Fishless cycling will not harm plants. Having fish in planted tank will supply some nitrate from their waste but if you do fishless cycling with ammonia to start with, there shouldn't be any problem.
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