bubble trouble with rena xpc canister

gerry45

Member
hi,
I have a 75 gallon with a protein skimmer,a seio 820 and a rena xp3 canister.
I get bubbles being burped into the tank all the time from the canister filter.
could the intake be drawing in bubbles from the skimmer?
was thinking of returning it for the new fluval fx5,apparently it purges air automatically but worried it mat be too big for a 75 gallon.
 
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