i have a 20 gallon tank with a fish tank top. i have an albino corn snake and a fox snake. i have lights but no over tank heating. i do have a heat pad though. when i get them out they feel kind of cool. it is probobly 75-85 degrees. is this normal? also what r some sighns of shedding. the fox snake eyes turned blue and the skin feels wierd. is this normal? please respond

