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oxygen exchange

553 views 2 replies 3 participants last post by  papwalker 
#1 ·
No longer have the HOB on the tank, only the canister. Like to keep it as quiet as possible since its in the living room. Worried that the ripples are not enough for the fish. Do I need actual bubbles breaking the surface ?
I do have an air pump, just not a fan of the bubble wall.
 
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