3 years ago

HEEEEEEEELP PLZZZZ ILL GIVE U BRAINLIEST

1 answer:

7 0

A good rule is to change 10 to 15 percent of the water each week. If your tank is heavily stocked, bump that up to 20 percent each week. A lightly stocked aquarium can maybe get by for two to four weeks, but this should be the maximum length of time between water changes.

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