I didn't have much luck with super glue. It ain't rocket science either. I used the gel type, cut a small piece, applied glue and held it underwater and to the glass for about two minutes. It sticks.....for a couple days. Next thing I know, it has fallen down. I've tried probably 8 patches and only gotten it to stick, stay and grow once. I shoved a little up against the back wall, lying on the bottom of the tank and it started growing upward. Got up about 6" and it has kinda stalled out.