Sooo… I’ve had a 5 gallon reef tank for quite a while now. I use it to QT new frags and/or sick frags. Haven’t made any changes to it since I’ve had it. Going on a few months. Well recently I did my usual water change, and Bam! Tiny little red worms..? Confused as to where they could have come from and if the recent water change could have elicited such an explosion? Could a small dash of frozen food done this? I ordered Flatworm X and know I need to do massive water changes to clear the toxins of the dead worms, was going to take a chance as it’s my QT tank. I don’t want to add my corals to my main tank for fear of contamination. Any advice or thoughts would be much appreciated.