Ok, well, I got 2 sheets of paper with this skimmer. One told me to use 500gph pump, the other said 550gph. So, my pump is 550 gph
, and I did a test run of the skimmer and there are NO bubbles whatsoever coming through it. I have it on a MagDrive5 (500gph). Should I upgrade this to a Mag7 (700gph)? It seems as though there's not enough power to pull the sir through the venturi. If I hook the pump directly to the skimmer w/ as little tubing as possible, the occasional spurt of large bubbles (as I have the tube open fully) will come up the middle tube. I'm assuming the pump is not strong enough, but I simply wanted to check.
Oh, and will I need to routinely add trace elements. I've read the skimmer pulls them out of the water. It's a 120Gal FOWLR
. Thanks for any and all input!