Callum.. BUSTED! America's Funniest Home Videos... And that was the Bob Saget era, too. Ouch.
I guess their philosophy behind rolling the chaeto is to get maximum exposue of water borne detritus/crap through all parts of the chaeto, when the attached parts might not see as much... It seems pretty shaky to me. I'd bet money that if you just dropped a weight on top of it and left it in it's "roll tank" you wouldn't see much of a decline in growth.
Pushin' a rock pushin' a rock pushin' a rock pushin' a rock... Turn it around turn it around turn it around... Pushin' a rock pushin' a rock pushin' a rock....
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