Hello! I'm just wondering if anyone uses water gel crystals in there setup for a source of water. I know most people use test tubes, but i have a small container where i can not put my test tube in there. If you know where to get water gel crystals or polyacromide copolymer at a store. Please comment and help me! Note: I live in Toronto, Canada
P.S I cannot order online since I'm broke xD.