Air stone, wave maker or skimmer

Kerrie Carpenter

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Hi guys - I have a tetra 54ltr tank and a 30ltr biorb. Both fully cycled and have fish in. The rectangular tank doesn’t seem to have a great amount of surface agitation and I have noticed a small amount of scum on the top-should I get a power head of some sort or wave maker or skimmer? Any help would be great. Thanks
 

Colin_T

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Protein skimmers don't work in freshwater.
Surface skimmers can help but are often more trouble than helpful.
Wave makers can take up a bit of space, depending on type.

Just add an airstone and have a coverglass on the tank to stop bubbles splashing on the light.
 
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Kerrie Carpenter

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Protein skimmers don't work in freshwater.
Surface skimmers can help but are often more trouble than helpful.
Wave makers can take up a bit of space, depending on type.

Just add an airstone and have a coverglass on the tank to stop bubbles splashing on the light.
Thank you!
 

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