Join Date: Jun 2008
Location: SJ Newfoundland, Canada
Yea, bottles harbour the worst kind of things. Especially if the sun hits it at any time of the day O.o They're hard to clean and fun for bunny to chew. That said, I kept a bottle for Akina for a while bc she ALWAYS flipped the metal bowl. What a fun game! -_- Anyway, I kept the bottle on the outside of the pen with the nozzle sticking through. Some bunnies still manage to chew them this way however.
Good luck!! I think the best material you can use is stainless steel. It's easy to clean. Only thing is changing the water twice a day or at least once a day to keep oxygen active.