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Old 05/27/2020, 07:04 PM   #2
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Join Date: Jul 2018
Posts: 337
Algae scrubber >>>> refugium on that scale. If you ever owned nano aio tank with refugium mod, you can see green algae on light area out compete cheato. I think refugium works well if it's higher volume (30% +) to total volume of the tank.

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