I had a question about purigen. I just purchased a fluval 305 and it has 3 media baskets. 1 is the pads, 1 is the bio, and the other is carbon. Can I replace the carbon for the purigen or do I need to keep the carbon?
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Originally posted by SunnyHouTX View PostAny number of reasons really. It usually means that the established amount of nitrifying bacteria is lagging in handling the added ammonia source. But it normalizes in a couple of days or so. If the fish aren't showing any signs of stress, I'd just let them be and observe. You could also add a dose of water conditioner like Prime or Safe to lower the ammonia and nitrite levels a bit.
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