Is 7.7 pH bad?

[jason2459]

So I searched and found how to make an air pump into a vacuum pump, but not instructions on adding an inlet nub to attach a hose to be able to draw air from where I want. Anyone know of anything?

Are you just looking for an air pump that accepts an inlet tubing?

Besides the Aqualifter there's

this
http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=23571

there may be more.

 

[Fizzman]

So I just got a aqua lifter. Seems to be the cheapest. All the submersible air pump r expensive and no garrunttees it's any quite than the aqua lifter running as air pump. It actually not bad if u have an air hose on both inlet an outlet.