I have a 29 gallon tank with a 20 gallons sump. I will be using a DIY weir overflow prolly 300-600 gph. What would be a good cheap return pump for this? What gph should it pump?
I use 2 returns for my 30 gallon (10 gal sump). Mag drive 7 goes through the chiller first and a rio1100 returns directly to the tank. Inside the tank I have a rio 800. I'm still not sure if I have enough flow but my coral looks pretty happy.
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