Question about water flow from the sump to the tank.
I purchased a Sicce pump rated for a little over 500 gph. When I set up the tank and added water, I noticed I had to really dial down the gate valve so the main drain wasn't sucking so much air. The gate valve was over 3/4s closed. I replaced that pump with the stock pump, rated at a little over 600 GPH and the gate valve only needed to be closed less than 1/2. I definitely see much better water movement in the tank and sump which leads me to believe I have pretty good flow. However, I do not see any way to increase or decrease the flow on the stock pump. I'm looking at a Sicce pump rated for over 700 gph. This for a 50 gal cube. Is this too much? I don't want to blow my fish all over tank. I was thinking it would be better to open up the gate valve and dial down the pump. That would give me greater flexibility for future pump demands.
Thoughts??
Ted