Bubbles?

[shroom101]

I have a 29g biocube w/ stock pump and I am getting air bubbles coming out of my return nozzle,I was wondering how too eliminate this,thanks for the help,Lee

[Illuminati]

Pumps running dry, add more water

[NemusMaximus]

yeah, or your sponges and overflows or whatever are restricted by algea accumulation. Clean it all up so the water moves into the rear pump chamber better.

[shroom101]

nope tank is topped off and sponge has just been cleaned,any more ideas?

[NemusMaximus]

DO you have a skimmer back there? It could be releasing microbubbles which are making their way back into the display... ?

[Msoar16]

I have the same problem, no sponges and tank level way above max. Also looking for suggestions.

[shroom101]

no skimmer and every thing has just been cleaned,they are very small and there really is not that many I just didn't know if it was normal

[C4DC]

Could dirty pump impeller blades cause cavitation to occour? Just a thought

[xenia2]

I upgraded my BC14 pump with MJ900 and now I can't fix the bubbles problem either. Let me know if you find any solution :/

[Venetia]

Different pump but I fixed mine by switching out the impeller.

[shroom101]

well I took everything apart and cleaned it and finally the bubbles are gone thanks,Lee