The cactus started getting brown spots near the base, so I took it out. The tiny watering I did stayed in the pot for over 4 days, im wondering if the roots are dead and causing overwatering or too much sun and the cactus is dehydrated if the roots are dead? The calloused area indented area under the cactus is hard and was there since purchase. I again dumped out all old soil and put in fresh, dry soil so now the cactus is fully dry again. :(
