CT_ Posted January 24, 2022 Share Posted January 24, 2022 (edited) I see they make a few different sizes of the neo diffuser. Does the size matter or is large always best? Since coop only sells the one size I'm wondering if it's the "best" size and and so Cory only stocks the one size. Edit: OMG I'm a dummy: from the store: "We've found the large size diffuser to work in any aquarium and as such, we only carry the one size...." Edited January 24, 2022 by CT_ Link to comment Share on other sites More sharing options...
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