Betta Fish tank wall Float Seperator

made this so my male bettas could share my big 50Gal tank. wanted something that's easy to see through and have an easy open close function. i also wanted something big enough that they can have a hide in and maybe some plants/decor. it anchors to the wall with the hooks glued on the wall of the tank so it can rise and fall with the water levels. i printed the cage with 100% infill and the float in 0% infill. the door should slot in with no tinkering needed and the walls are not see through so the bettas don't stress each other.

EDIT: while the glue worked in my setup i added optional cage side hooks that keep the cage stationary on the side of the tank. been using it for about a week now successfully. i trained my bettas to come inside thair cage every eavening for food and while feeding i switch caps so my other male gets the full tank for the next day.