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Most gravel vacuums are a wide rigid tube attached to a narrower siphon tube. Gravel vacuums are used when performing water changes to clean part of the gravel while removing the water. Vacuuming part of your substrate while doing water changes is an added bonus. Fish tank gravel vacuums are ideal for all fish tanks that have gravel bottoms and since most do, this piece of cleaning equipment may be perfect for you and your new fish tank. Always remember Gravel vacs are a very important tool for maintaining a healthy tank. Cleaning uneaten food and fish waste from your gravel tank will help to keep your tank in balance and remove toxics from the water. Photo by: killer
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