as far as i know the cycle thing witht he bacteria still applies to cold SW as it does tropical. same for FW at all temps. So i would set up the tank, sand rock, mechanics and throw in a frozen uncooked shrimp and then just watch the nitrogen levels (NH4, NO2, NO3).
so yah i would assume the local rock would be "live". but i could be wrong.
as for filter feeders, I would consider an oyster (only one so you can keep a close eye on it) . scallop would be fun too. if you want the ultimate cool filter feeder though, think about a crinoid. now those guys are fun.
huh i never realised there was actually more than one or two people on canreef really interested in cold water tanks.
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