Input needed on air pump

I will reply to scubadivers answer first - i think when he says buy bigger than you need, he means a little bigger. if you way oversize the pump you will waste energy and also have a ton of excess air to deal with. You shouldn't constrict the pump as the back pressure will decrease the life of the pump. I always build in a few (or many) extra valves so i can bleed off excess air. With too much pressure you can literally blow the hose right off of the valve.

Jehmco rocks.

if you buy an appropriately sized pump and outgrow it in a few years you can do two things - 1) keep it as a reserve (great idea) and 2) sell it for very slight decrease compared to what you paid for it. I have regularly sold pumps that cost me $200 for $150 after three years of use.

I run 2 large pumps

Medo-80, very quiet, lots of power, runs 40 sponges, but pricey linear
Dolphin-50, slight buzz, great power, runs 21 sponges, good price diaphragm

I wish I bought the dolphin-150

Wanting to buy a large air pump to run all of my tanks off of in my fish room.

Will have roughly 30-40 outlets when all said and done.

Am looking for something along the lines of a Alita AL-60.

Would like to have some room for expansion later on down the road.


Any ideas?
What do you use and how do you like it?

Would like to pick up a Linear pump style pump.



Thanks!