# Aquarium filters

**URL:** <https://boards.straightdope.com/t/aquarium-filters/1026358>\
**Category:** Miscellaneous and Personal Stuff I Must Share\
**Created:** [January 5, 2026, 2:20am UTC](https://boards.straightdope.com/t/aquarium-filters/1026358 "2026-01-05T02:20:49Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![ricepad](https://avatars.discourse-cdn.com/v4/letter/r/b38774/32.png) [@ricepad](https://boards.straightdope.com/u/ricepad)\
**Post date:** [January 6, 2026, 9:49pm UTC](https://boards.straightdope.com/t/aquarium-filters/1026358/21 "2026-01-06T21:49:07Z")

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One caveat to acquiring a used tank: fill it with water outside to test it first. You never know whether a used tank is free of leaks, and you don’t want to wake up with a tank that’s half full and a squishy carpet! It’s actually not a bad idea to test even a new tank, but if you purchase a tank from a reputable shop, the risk is minimal.

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