How often should i change my filter cartridge for my aquarium?

Question

i have a ten gallon aquarium with a whisper filter and i change the water every two weeks. the link is the type of filter i have.

http://www.tetra-fish.com/sites/tetrafish/catalog/productdetail.aspx?id=1276&cid=275

i have seven neon tetras, two zebra danios, and two oto dwarf suckers

thanks for the help :D

Answer 1

every 4 weeks

goodluck!!! =D

Answer 2

I would say every 2 month

Answer 3

you should change it at least every 4 weeks or every month

Answer 4

Generally, you should change your filter every 3-4 weeks, but don't be afraid to change it before then if you notice lower water quality, or dirty water.  Best of Luck!

Answer 5

Hmm.. I'd say go with every three weeks or so should be fine. If the cartridge gets icky before that, using a small siphon hose- Use tank water to rinse out the cartridge. But try not to keep it out of the filter for too long, it can kill the bacteria on it.

I have a similar filter in my 29 gallon [but it's made for a 29 gallon obviously] and I do mine every two weeks. But I have larger fish in mine that most likely produce a lot more waste than yours do.

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