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from my understanding 1 square inch screen per gallon. so correct me if I'm wrong, I did 125 divided by 1" would be a 12.1/2" screen right?
I want to try a ATS on my new setup. (48x30x20) 125 gallon with a 40 breeder sump. I'm guessing about 125 gallons of water. Question 1) what size...