Hi everyone, I just need a bit of advice, I wanted to get my bearded dragon a new basking platform and the ones I liked seemed to be quite expensive so I thought sod it I'm going to try and make one, I've done all the stuff I was told to do grouted it but I bought a sand effect spray paint to colour it, so do I still have to put a sealant on it or can it just go in the vivarium as it is???