The Planted Tank Forum - View Single Post - Lily pipe surface skimmer
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post #2 of (permalink) Old 04-11-2020, 07:29 PM
Algae Grower
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Join Date: Jan 2020
Posts: 48
to increase skimming draw out the air under the cup. cup will lower and let more flow in. i use a curved piece of airline attached to a syringe.

i would keep it. it really helps with water clarity and gaseous exchange.
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