[Engel]

My robo never tried climbing water bottles but one of my syrians did and yes it fell but not on him thankfully. Have you tried something like this?
NA Pet Hideaway And Water Bottle Set Hamster Water Bottle Drinker Feeder Is Suitable For Hamsters, Guinea Pigs, Gerbils, Rabbits, Hedgehogs And Other Small Animals : Amazon.co.uk: Pet Supplies