You can get Flow-vs-Head height from the pump manufacturer of the pump.
20' you'll be paying out the ass for a pump.

Here is a better idea for lighting. This is what I use and it works GREAT
!!!
http://www.melevsreef.com/fuge_bulb.html

Chris


"KurtG" wrote in message
...

I'm thinking of moving my whole sump to my first floor that has a great
window w/ natural sunlight for a refugium.

I think it's about a 16ft rise back to my tank (20' for margin of error),
so would a regular oversized submersible pump work? I'd expect lower
water throughput then it's rated, but then that's why it's oversized.

If not, where would I find a suitable pump?

--Kurt