I extended the hose from the power pump to the skimmer and it made the power of the pump less and cured the bubbles. It also weakens the skimming ability…less bubbles less skim.
My Coralife was either in sump or HOB..so if you have room put it in a sump. Mine was 25 inches tall and wouldn’t fit under my stand.
Al&Burke made an awesome HOB refugium and a PVC pipe for the Coralife so the bubbles were taken care of in a bubble trap. He has pictures and he might make you one, I don’t know what he would charge for materials and labor, but it wouldn’t hurt to ask.