Hi everyone, lemme just say hi since I'm new here Anyways, I have 2 53L reservoirs, which I plan on growing 4 plants in, 2 in each container in a DWC setup. My problem is kinda simple really. I wanna put a 14" airstone in the bottom of each reservoir. I've tried to keep them held down with the included suction cups but they just won't stay stuck on even with water on them. I havent got any plants in them yet, as I'm still testing several things in my setup. Anyways, I was wondering if I could use crazy glue or anything else you guys could recommend that won't end up possibly contaminating my water in the reservoir and possibly hurting my future babies to be. Thanks in advance.