Establishing babies on frozen from the beginning is pretty easy. Switching them to frozen after they're eating live can be tricky. Here are some suggestions:
1) Let the snake go hungry for two to three weeks to build an appetite. Don't worry, a healthy snake can go months without eating.
2) Thaw during the day, then soak in hot hot tap water for several minutes before offering to the snake. Offer while warm.
3) If the snake doesn't strike and wrap immediately, leave in front of the snake. Check in the morning. I have animals that just pick it up off the floor and eat.
4) If the first type of food doesn't work, try something else. For example, if you want the snake eating mice, try these first. If the snake refuses, try appropriately sized rats. You may have to settle for this.
5) Tap the snake on the back with the thawed rodent. With a little agitation, I can usually get the snake to strike at the food. Once they strike, they usually wrap.
I have a few animals here that just prefer live. I've given up the fight. I offer a live mouse. Then, as the snake is swallowing the last part of the mouse, while the snake's mouth is still open, I slip the head of a thawed rat right in behind it. The snake just keeps on swallowing and takes the whole rat.
As for the "dry" skin, it could be dehydration or it could be nothing at all. Can you post a pic?
I'm going to assume that this is a young BRB. If so, they seem to do well with constant access to fresh water (a dish large enough for them to soak in will be much appreciated). They also seem to benefit from just a little humidity in their enclosures.
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Mike Lockwood
www.tooscaley.com