Normal
Yes. Horrible actually. You are putting your tarantula in danger by leaving them in there at all times. Chubbs pretty much just explained why. Extremely vulnerable while molting, a few crickets could easily kill them, or cause serious damage. This really is the basics of the basics, I don't want to get on you again for minimal research but come on man. Next thing your gonna tell us is you have cricket cubes or a sponge in the water bowl...