My Grays are starting to eat crickets and now I'm looking into supplements for them. I'm looking at Josh's Frogs and I'm not sure which kind of supplement they would need. I know I want to get color enhancer for them but other than that I'm at a loss. Can anyone help me out?

Right now they don't have a lighting system, I know they don't need special lighting but I'd like to light up their tank a little. I would only use it maybe at night since there's sunlight next to their tank in the day. What do you guys think I should use? Maybe a nocturnal light?

Also I'm looking into heating pads, I know Grays hibernate and won't need one but it would be nice to keep them warm and have them not hibernate. I was looking at and ExoTerra Rainforest Heatwave pad and it says it heats substrate. Should I go for this one or something else? It shouldn't be too hot since there's thin plastic in the tank (plants, tank cover, cups of water for plants ect.)

Any and all help is appreciated thank you in advance!