I found the little bottle of that system was really only good for a small tank. I ran that bottle on tanks of about 1, 2 and 3 gallons.
Larger tanks got 2 liter soda bottles. My 20 gallon tanks would share 2 bottles so I would swap out one bottle at a time. I could probably have run 2 bottles on just one of the 20s, but I was running out of bottles, using more on larger tanks.
Larger tanks got 2 liter soda bottles. My 20 gallon tanks would share 2 bottles so I would swap out one bottle at a time. I could probably have run 2 bottles on just one of the 20s, but I was running out of bottles, using more on larger tanks.