Pump is blowing microbubbles

I have an oceanic 29gal biocube and the pump is blowing this microbubbles making the tank look dirty. Any ideas how to fix this?

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The pump might need cleaning, there could be a hair line crack in the hose.

 

Are you topping the tank off regularly? Looks like your return water level is low

 

I take it this is a new problem?

 

Oh ya-DSC is right. If you don't top up the evaporated water it will cause microbubbles

 

I own a Nano Cube and I had the same problem. Like DSC and Piano10 have said your water levels are too low. If you need a fast fix just push the blower downwards and make sure it's completely underwater. But you definitely need to top off water regularly.

 

What pump are you using?

I am using a maxijet in my 10g IM and I get microbubbles like no other. After cleaning the pump I get a snowglobe of microbubbles.

If its still happening after you top up the water, then there is another cause

 

It would help if the OP would respond to the advice everyone's giving so we can figure out the problem. Did you try any of these suggestions??

 

Micro bubbles are usually caused by a venturi effect when there is a really small plumbing leak and air is getting sucked into the plumbing system. Most times the cause is sloppy PVC pipe joining.