Veileds chams have the advantage over panthers in that they can get a lot of their water from the fruits and veggies they eat.
Get some Romain, run pieces of it under cold water, feed it to him while its still dripping wet.
I have only see my oldest drink when he was a baby, and I have NEVER seen Smidget drink.
I keep my drippers going all day, and the mistking goes off every 2 hours.
Just keep check of their urates, its the only way to tell if they are getting enough water.