sump for 125 gallon tank, power out
hello, im setting up a marineland corner flow 125 gallon aquarium and petco 40 breeder sump (aquion). bought the sump today and need to order baffles. i need to know how many gallons of water i can expect to flow to sump when the return pump is off. i will not be using check valves, so both overflows and what ever drains from tank will need to be accounted for. the 2 inch rule of thumb says approx 11 gallons. i do not have the 125 yet, so i cant run a test. currently i am allowing for 20 gallons. this is very restrictive on my sump layout plans. was thinking about a 75 gallon sump but that would leave me with only 8 inches of clearance for maintenance access. any first hand info would be a great help.