So I wasn't really thing strait and I used water from my quarantine tank to thaw out some frozen food and I dumped the excess into my display tank so then I was like screw it ill put my fish in the DT. My clowns seem healthy except for some white poop which some people say can be normal but I want to treat with metronidazole flakes just to be safe so I'm wondering if anyone has ever used metronidazole flakes in a reef tank because I have some corals and live rock but I don't want to start treatment until I'm certain that they're reef safe. Any help is greatly appreciated.