CharlieKlein
Aquarium Advice Addict
I have a 37 gallon tank with a bio wheel filter. Long story short. It's been 6 months and no cartrage cha he. I noticed to day at feeding the wheel wasn't spinning fast at all. I lifted the cartrage a bit and boom. It went, along with a swirling one of gunk in to the tank. What do i need to do to get the filter back to normal? Get a new cartrage? What about the he official bacteria in it?