The reason i asked is because i never QT anything. Just put my newly acquired corals in the main tank and that's it. Now im starting to regret doing that as nothing in my tank seem to thrive. Corals get bleached out from the base, things browned out, got RB and digi eating nudibranch. I've seen people tank that never QT a thing and they look great. Are they just plain lucky?What am i doing wrong?