I just inherited a 55Gal Oceanic tank, which I'm sure my cichlids will
appreciate more than my current 20Gal setup . Anyhow, it came with a
Pengiun 330 Biowheel thingie. I tested it out, and it operates, but it won't
suck the water all the way up. Just about halfway and it stops. Is there a
part I can replace to make it work? A guy at the fish store remarked it
might the fan, which is apparenlty a $12 part, and would beat buying a $50
pump. Any input?