why is my filstar 5 continually producing bubbles out of the spray bar.

by Pete Masters
(Yabucoa, Puerto Rico)

I See the filter5 that produces bubbles.They comme out of the spay bar and produce an anoying sound.
The aquarium is heavyly planted and has co2 injection.
Any idea or sugestion on how to stop the bubbleling?.
thanks
Pete Masters

A: Many questions about bubbles have been answered already. You can find many of these questions at the bottom of the main page and under the performance category