after looking things over on my mini,it wasnt that the glue had failed fro any kind of juice,the glue just came loose i guess from being shock loaded by falling over. these pieces are glued together,and i think the problem with them is 2 very smooth surfaces with nothing basically for the glue to adhere to.the tank is glass,the inside of the metal collar is very smooth finished. design problem i think.at least for us that perhaps may knock stuff over or drop em. used a 2 part epoxy and let it cure for over 24 hours so it should be good to go.if it happens again ill rough up both pieces and see if that cures it.