Pump GPH??

[Chest Rockwell]

I have a drilled 90 gallon going to a 20 gallon sump. I purchased off eBay a 530gph pump. My stock is a ~9" Oscar, 5.5" & 4.5" Jack Dempsey, 3.5" Green Terror, 3" Pearl Cichlid, and 2x 3" Fire Mouth Cichlid. Is this pump good enough for proper water movement through display tank and sump?? I'm not sure if i should buy a pump that does about 800GPH?? I have used this 530 Pump for about 3 months and my water is 90%clear.

 

[coralbandit]

I would use a larger pump as you need to account for head loss.
In my 75 reef(I know you are FW) I use a mag 9.5.
Mags are loud but dependable.
I have been switching over to DC pumps by Jeboa that have electronic speed control(saving elec.$$$$) and are basically silent.