what are some of the most powerful air pumps out there,i purchased a marineland airmaster 2000 pump to power my 30inch bubble wand but it only seems to bubble on the closest side to the air hose and not make it all the way down.i'm either going to take it bak and get a more pwerful pump,or take it bak and get the marineland airmaster 3000 for 4$ more with two air ports,then join both to a "t" and it should be more powerful.what your opinion?