Fishy411
Your lfs should sell a valve that you can put in the airline to bleed some of the excess air pressure off. If you get one, you can experiment and find the amount that seems to work best for your tank.
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Elisabeth83
What kind of filter do you have? If the bubbles are coming from the water passing through the filter media, you do not want to turn it off at all. If you do, you are at risk of losing your beneficial bacteria. Try to adjust it rather than turning it off and on. If this doesn't work, perhaps you will have to get a different filter for them.
Your lfs should sell a valve that you can put in the airline to bleed some of the excess air pressure off. If you get one, you can experiment and find the amount that seems to work best for your tank.
_____
Elisabeth83
What kind of filter do you have? If the bubbles are coming from the water passing through the filter media, you do not want to turn it off at all. If you do, you are at risk of losing your beneficial bacteria. Try to adjust it rather than turning it off and on. If this doesn't work, perhaps you will have to get a different filter for them.