Every possible way you can siphon the water from a fish tankFor optimum fish health, fish tanks must be drained 25% on a weekly basis. This can be done by way of a siphon, and your fish can stay in the tank. A simple aquarium vacuum kit
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3 Ways to Start a Siphon (Fish Tank) - wikiHow
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How should I rearrange the fish tank decorations when I'm doing a
3 Ways to Start a Siphon (Fish Tank) - wikiHow
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