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What happens if I don't clean my aquarium filter for a month?

Updated On September 23rd, 2025

I have 65 litre aquarium tank with internal power filter I change water weekly 50-80%. but not cleaning to Internal from 15 days . So what happened if we don't clean filter for one month it's harm to fish or for my room ?

1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on July 9th, 2019

Thanks for using Petco Pet Education Center, formerly Petcoach! You can probably extend it to one month if you are doing water changes that often. I would recommend you extend it to 3 weeks first. If that goes well then extend it to 4 weeks to see how it goes. You can then decide how long you can let it go before cleaning. Best of luck!

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