Patricia0648
Aquarium Advice Newbie
- Joined
- May 8, 2011
- Messages
- 5
How often should I change filter cartridge. Water is clear and all water tests are fine. Have one small parrot fish in 38 gallon tank
jcolon said:Oh and if you need to replace, put the new cartridge in front of the old one for a few weeks so the BB from the old seeds the new. Otherwise you could set off a mini-cycle.
Thanks for all your help!