put your rocks back in the cloudy tank.. it will settle down fast and at worst you will have to blow them off with a turkey baster.. if the backteria and critters die off in your rock because of cold you will be much worse off.. your fish will be fine with a heater and cirulation.. just point the power head up so it ripples the warter surface good for O2 exchange.
Steve
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 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*
Some strive to be perfect.... I just strive.
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