Does anyone knows how to make your own filter cartridge replacement.
I have 2 Marineland penguin 350 in my 90gl cichlid tank and each filter takes 4 cartridges, which can get expencive.
I have some activated carbon and some of the white floss material.
I have 2 Marineland penguin 350 in my 90gl cichlid tank and each filter takes 4 cartridges, which can get expencive.
I have some activated carbon and some of the white floss material.
