My return pump has chugged along for 1,815 days in a row, running 23.5 hours a day. Every night for about 30 minutes, the return pump is turned off while I feed the tank, then restarted once they've had their feasting period. The Little Giant - OPGW-46, tired and wailing: Over the past month, it didn't always want to restart. I tried spraying some silicone lubricant on the shaft, and chipped ...
I am planning to use an Aqua-C EV-240 skimmer on my new 162 gal reef tank. I see that you can buy them with either a submersible pump or an external pump. If run with an external pump, does the skimmer then sit outside the sump? Also, I would then need to runa separate external pump for the flow through the sump and fuge...correct. Do I factor in both pumps for total flow rate in tank? I also hear of a lot of people running 2 return pumps, in case one goes bad, you have ...