Hello all have a few questions...right now running a 50 gallon with a penguin 100 and 150 gonna be taking the penguin 100 off and adding a aqua clear 110 and the penguin 150.. Now when I setup the aqua clear 110 I'm gonna be setting up with fulval peat granules,sponge,and aqua clear biomax..now on the penguin that I'm keeping I don't want to run carbon anymore due to wanting to keep the tannins in the water what do I put in the penguin for a cartridge all the help would be great trying to mimic there natural habitat thanks
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