Well guys i am just tossing a curious question out there. I was wondering what the scrubbie to gallons would be. Meaning how many scrubbies take care of how many gallons? How do companies say sumps that already have bio balls added to the wet/dry are recommended for a certain tank size. Is there a formula for this? Just wondering if anyone could figure out the number of scrubbies per gallon you would need. Thanks.
