Last night, I tried the green lens on the pool light and went for 2 green lenses to make it glowing enough (the picture makes it look darker than it truly was. I floated the toxic containers all over the surface, but they didn't really show up, so I put a green glow stick inside one and BOOM! I'm going to hopefully pick up more green glow sticks and it'll be totally toxic! (see the difference between the lit one and non-lit one?)