i agree with Carmie and Fat, i would also leave the worm alone, and not go by whay the
LFS says. it sounds like they are one of the "out to get the money" stores. the worm can definitely survive out of the tube, with the right conditions.
i would also add another power head to the tank for make the flow a little more chaotic. maybe a maxijet 400 or 600. or the new nano pumps found here ...
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