Aquarium Water PumpsExternal water pumps, available in a variety of sizes, may be used as return pumps (from a sump or wet/dry filter), for closed loop circulation or to drive a protein skimmer. A powerhead is a submersible water pump generally used for water circulation within an aquarium or to power a protein skimmer.
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Investing in a good water pump is one of the best things you can do for your aquarium. Water pumps do a lot of hard work, and they are often used on a regular basis, so it's great to have one that you can rely on and that will sti...ONLY$43.94