Yikes!....what a monster....I'm curious as to what happened to the worm?Be glad you are not running a reef tank, i started a tank from dry rock, and about 8 yrs in i couldn’t keep snails or hermit crabs. After 12 years i broke down the tank and found a 3ft long worm with teeth and four blue eyes hiding in the rocks. Another option would be to set up a puffer tank lol.