your posts are for the most part filled with good information.
but then you make transitions to nonsensical things like your tiny worms (that have no vocal chords or other organs that produce sound) are emitting loud noises. totally absurd!!!
worms do create gas so you are likely hearing gas pockets moving around.
8 inches meh, i had 3-4 foot Ascaris and gigantic rope worms thick as my pinky. no audible sounds during die-off!!
your worms could be releasing chemicals or metals that induce some form of temporary tinnitus.