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Everyone tells you to throw away your hang-on-back filter the moment you get serious. They are wrong. That cheap little filter is one of the most powerful tools in the hobby — you were just never shown how to run it. In this video I give you ten hacks that turn it into a filter that outperforms units costing five times as much: how to stop it dying, silence the rattle, tame the flow, grow a plant inside it, guard the intake, and the one change that saves you the most money and finally gives you crystal-clear water. The manufacturer designed that filter to sell you a paper cartridge forever. Here is how you break the leash for good.

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