bubbles from HOB filter
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Old 07-12-2013, 07:33 PM   #1
Algae Grower
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bubbles from HOB filter

I have a new 75 gallon tank that I am working on setting up. I have added plants in the last few days and continuing the cycle. My HOB filter has begun to release a large amount of bubbles into the water. I have raised the water level as high as possible and the fall is an inch or so now but bubbles continue. I am only using filter square that came with filter, 70 aqua clear(running a canister also).....my question...
What can I do to stop the bubbles?
Are they good or bad or what for the planted tank? no fish, etc at this time
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Old 07-12-2013, 07:53 PM   #2
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unless you are adding CO2 into tank, bubbles/splash are fine for planted tank besides noise.

splash degas CO2, you may work around this by
  • slower the flow
  • media that slow/redirect the flow, such as plant roots (see Planted HoB thread) or custom cut plastic sheet
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Old 07-12-2013, 07:58 PM   #3
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I am not adding CO2 and there is no splash due to the water level being so high but I hate looking at the bubbles...lol....so it will not hurt the tank environment?
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Old 07-14-2013, 04:02 PM   #4
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So bubbles forming from surface agitation via outflow from the filter? Sounds pretty normal. If it's really bothering you, you can try doing the soda bottle trick, or restricting the filter flow if it isnt adjustable.
I'm not into the image, but into the hobby...
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