Tank is happy healthy eating well peeing and pooping, no drainage from anywhere gets at least 6 hours of sun a day!!!! That being said, there are areas between, on and around his entire carpace area, I had noticed it a few weeks ago and began to apply vita shell about 1-2 times a week. How many times a week should i add calcium powder to his food? Or what sould i be doing, not super worried YET !!!: