[ Many thanks for the help re: LR
Hi -- I've got a protien skimmer hanging off the back of a 55 gal
, and all has been well for about 6 months. Recently, however, it is just pumping out a ton of bubbles, no matter how much I tweak the venturi tube inlet. The manual said to close it off for three days if that happens, but that has had no effect. I rinse out the foam block whenever I do a water change (say, every month), and all appears OK with it (but then again, I'm not sure what to look for). Does the foam need to be replaced regularly? or the tube?
What might I be missing?