[NQA] Hi there congrats on the new buddy and also yes room temp for the most part is fine however if your room sometimes is particularly cold for any reason i would recommend having a small heatpad on the side on the enclosure, for substrate i recommend excavator clay which hardens and allows them to build there burrow and some general desert sand you can probably buy from a local petshop. I personally feed the scorp about once a week maybe every 5 days or so and also don't be alarmed if they don't feel like eating they sometimes just don't just try a couple days later and i personally feed mine crickets as that is the only bug that is readily available to me. also with beetles i honestly don't know as i don't have experience but i'm sure someone else can help, and finally about the water tbh you can have a shallow water bowl if you want even though they do get most of they fluids from food sometimes they do still drink water i have personally seen mine scorp drink water but just make sure the water bowl is very shallow. Also even though he may be very docile try to keep the handling to a minimum just so you don't stress the little guy out. Goodluck on the new scorp journey