Are you sure that's not a 10 gallon? It kind of looks like it, and if it is cold were you are that UTH might not cut it for you so you may need a light which produces heat or ceramic heat emitter. IMO those analog gauges are not great at all, you may want to buy some digital gauges. I find sometimes when it come to these UTH's when they are on the side you want to go the next size up, I have 30-40 and a 10-20 UTH on mine and Its only a 10 and it can reach 84 tops on good day. But it is cold were I am, in the summer I wont have to use both. One more thing this is totally your decision but I would get a softer plant then that green long one you have because I bought the same and the plastic is very hard and its a good way for him to hurt an eye or even get a scratch or cut on his belly. I don't use mine but maybe even if you hang so he could just sit under it would be safer. Good luck when you do end up getting a frog.