The Planted Tank Forum - View Single Post - Spec- With reverse UGF ?
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Old 07-08-2013, 05:38 PM   #21
wintermute
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Just wondering how the OP's system is doing - any loss of flow issues over time due to bugs benefiting from the partially aerated substrate? This may be pure genius. I just bought a Spec V and want to try this out - although some additional means of surface movement may be required for "normal" fishes.

Also, I assume the best substrate to use is an inert, no-fines, substrate...either gravel or sand (but which is prefered)?

Last edited by wintermute; 07-08-2013 at 09:26 PM.. Reason: adding questions
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