In my 10g tank (lightly planted, if that matters), I have a penguin biowheel 100 on one side, and on the other side is a bubble wand. I was looking at the tank today, and noticed that the penguin creates much more surface agitation and current than my previous basic filter (so glad I'm rid of it!), and certainly more than the wand. Since I'm moving into a dorm soon and am glad to leave home anything non-essential... is the bubble wand/air pump really doing much here? Should I leave it in, Just In Case?