shockshockshad
Fish Fanatic
- Joined
- Sep 18, 2007
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I have a penguin 150 filter, and I have been recommended that, since i am going to have plants (with fertilizer), and the same insert contains both sponge and carbon, just let the carbon sit there and it will eventually wear out, not removing the fertilizer. But I just read that once the carbon is "full", it will leach everything back into the tank. Should I just get rid of the inserts that go with the filter, and get some sponge and bio-max (the stuff in my aquaclear- I removed the carbon)? If that is not good, what should I get?