- Joined
- Feb 15, 2017
- Messages
- 253
- Reaction score
- 177
- Location
- New England
- What state or country do you live in
- Massachusetts
I was wondering if this would work. I have an ATO and 20 gallon top off tank.The main tank and sump are 119 gallons. I was thinking of putting some po4 Rx into the 20 gallon top off tank so it would go in at a more even rate. Any advice?

