I always tell people not to use waterfalls in their snake terrarium.
Just a simple waterbowl that is cleaned on a regular base is much better.
@ Cyrill... I work in Reptilezoo Iguana in Vlissingen, the Netherlands.
Look at our site that I made:
IGUANA. Together with two friends we started this zoo in 1981 after giving shelter tot all kinds of reptiles at our homes.
Today it is the largest, completely indoor Reptilezoo from Europe I am told.
We don't keep garter snakes overthere at this time. Our biggest snake is a female Python reticulatus - Reticulated python that weighs 80 kilo and is 6 meters long.
The smallest is a juvenile Natrix natrix that weighs about 10 gram and is 25 cm long
