Christy,
I thought it was just my rock shedding at first too. Then I saw a pair of hitchhiker crabs in that tank one day. I'm sure if there are two, there are more. Crabs hide very well and are often seen only at night.
We have some rock from our 120g in three 5g BB quarantine tanks looking for that snail-eating worm. At one point during the QT, two of the tanks have very little detritus and one had loads. The detritus in the third tank had little pellets mixed among the powdery stuff. When it was time for those three rocks to come out of QT, I checked them all for crabs. Found a quarter-sized crab in the rock from the really dirty tank. I realized the pellets were crab poop that had not broken down yet.
I find these same pellets in the 67g before siphoning. I intend, at some point when Chris (non-union) isn't forced to work 12 hrs/6 days a week because of that freaking Telus labour dispute, to tear down that tank and go crabbing.
I would have never noticed how much detritus was being produced in our tanks if we hadn't gone BB. We get 1/3 as much detritus weekly from our BB 120g as we do out of the 67g.
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