That rock doesn't look live. To avoid other reefers problems you might want to bleach your rock if you haven't done so already. You learned the hard way last time. There are lots of nasties out there much worse or difficult to treat then bubble algae and red slime.
My bad! Meant to say dry rock! Got a box of dry rock he didn't use in his new tank.
03-12-2018, 11:06 PM
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