Mr502go
Aquarium Advice Activist
I know I probably shouldn't have, but I changed the cartridge in my penguin, the water kept overflowing in the spill way where the inlet tube was coming out. I've had the Bio-wheel running the whole time, sooo, I'm hoping that's got enough budding beneficial bacteria on it to work right. It was just overflowing tooo much, I think it must have been a defective cartridge or something, flows much better now, but am concerned about bacteria.