Hypothetical reef tank

[michika]

Originally Posted by danny zubot

You need to decide how many output nozzles you will have first, as well as the diameter of each nozzle...

...As with so many things in this hobby, I would buy a bigger pump than you might need. It saves you from having to upgrade later.

I should have elaborated, my bad!

Okay so I've figured that I will probably be doing 2 x 2" drains in a single overflow box. The overflow box will be mounted exterior to the tank itself, and will probably only be about 7"-8" if I can get away with it. I'm still researching this.

For returns on the calfo manifold I was thinking of doing 9 returns. I am still debating doing two additional returns in the center of the tank, directly through the back glass; one below the shallow overflow box, and possibly one within it. I am pretty sure I'll be doing the manifold with 1" pipe and loc-line.

I did choose the snapper because of its high flow rate, higher then I suspect I need. I figured I would need minimum 1000gph at 0 head. Since the snapper can be throttled back, as well as its low power draw, I think this is the pump for me.

Does that clarify where I'm trying to go with this? Anymore thoughts on my pump selection?