My stopper came off of my Tetratec1200 and I glued it then found it difficult to clean that section. Stupidly when it happened to the 2nd Tetratec I did exactly the same. Now.both end sections remain dirty
not 100% sure but thought id say it to be safe would it not disintegrate and also the pollute the tank? thats y i used an optics bung as its used with liquids that you drink so will be safe.