schneider skink wont eat

Question
I bought a schneider skink a few days after christmas.He's full grown.The problem is he wont eat anything he just hides under his rock.I dont know why he wont eat.i asked the store they said he would only eat 3-4days.I have calcium sand as his substancce a hideing rock,and a few rocks a uvb buld a 75 watt bulb and i feed him lettuce,fruit,mealworms and caned omnivourus food.his cage tempatore is 75 but sometimes i use a hotter bulb to heat up his enviorment.  

Answer
Schneiders are notorious for being stressed and loaded with parasites they commonly will not eat and die.  Try buying some metronidazole fromt he fish section of your petstore mix one tablet with a gallon of water and use that as his only water source for a week or so it should act as an appetite stimulant and get rid of some lower level parasites.