hi, i used a protein skimmer on my tank but i just used a non-aquarium pump. so the bubbles are very limited. i was wondering, if i placed a air source on the hose after the pump going to the skimmer, would it do the trick? would it create a needle wheel impeller like? or i need to put the air source before the impeller of my pump? could somebody help me out on this. thank you very much.