Hello, I have 4 young robos in a bin cage and i quickly found out that they aren't strong enough to get sufficient water out of the traditional spout and metal ball water bottles. After going through 3 different kinds of bottles I found a way that allows em to drink all the fresh water they want in a much more natural drinking position. I used a bird water bottle with a narrow trough and a metal water bottle hanger to securely hook it to the side of the cage. It's silent too so there's no noise at night and they aren't struggling to get water anymore. Plus their tiny baby tongues lapping up water is so cute!