GPH?

[Spyd]

Wow!!! That is an awesome tank! Holy smokes!


As for your initial question, I don't think it is overkill. I run a Water Blaster HY10000 that pumps out 2600GPH for my 180G system. You definitely have to take into account your length of plumbing and # of fittings as T's and 90's greatly reduce your flow rate. I also run my reactors, water change tank and frag tank all off the same pump so my water speed through my sump is greatly dimminished.

For a seperate fuge I would have a very slow flow controlled by a valve. I am of the opinion that whether the flow of water in your sump is greater than or equal to the skimmer pump rating, it doesn't really matter. At the end of the day, the skimmer will do its job but your water might pass it by a couple of times before it gets cleaned up. Still no harm done.