I just posted this video on Instagram, showing my new hamster struggling to drink water. I had started filming him when I saw him struggling, wondering if I should consult with the breeder, but then realized the issue was a stuck water bottle.
Unless a client says otherwise, I usually prefer to offer both a water bottle and a water bowl to hamsters, Guinea pigs, and rabbits. It is important that pets always have access to clean, fresh water, and having both options covers all the bases.
If the water bottle gets stuck, there is still water available in the bowl; if the bowl is knocked over or empty or soiled with bedding (mice – why do they always bury it???), or pooped in (Guinea pigs – poop-flinging champions), there is still water in the bottle.
Some pets frequently knock over water bowls, or they might be in danger of drowning in a bowl, so a water bottle might be preferred. For small caged pets that might drown in a water bowl – for example, dwarf hamsters or very young hamsters – the bowl can be partly filled with large, cleaned aquarium stones to make the water level shallow.
Water bottles might get stuck, which means the pet can’t get water. They should be checked at least once a day to make sure this hasn’t happened. Simply tap the ball with a finger. If the finger is wet, it’s working. If the finger is dry, it’s stuck.
In the stuck video on the left, I hadn’t noticed the issue at first, because I saw a couple small air bubbles floating up, and I thought that that indicated that water was coming out. Echo is a very young hamster and has only been with me for a week. I wasn’t sure if he was used to drinking from a bottle. However, I became suspicious and checked right after filming, and found the bottle was stuck. The spout was bone dry. My baby had been fighting with the water bottle!
Many water bottles for small pets have the best water flow if they are filled no more than 75% full. I’ll fess up… I sometimes forget this. The glass bottle here has an indentation on the side as a marker. This brand also includes a small plastic carrot inside the bottle, which floats and helps to indicate the water level.
If a water bottle gets stuck, I turn it upside down a few times, and then retest. This usually fixes the issue by dislodging air bubbles blocking the water flow. If a water bottle frequently clogs, it might be best to replace with a different bottle. Same if a bottle won’t stop leaking, as that will create a wet spot, when you want to keep the little paws dry, as well as leaking out all the water.
Yes, water bottles need cleaning
Be sure to regularly wash the water bottle, to prevent mildew, bacteria, and algae build-up. It is not ok to just refill the bottle without ever cleaning it. Your pets need fresh, clean water. Any sign of growth, discoloration, or slime should be removed.
Pro tip: cleaning pet items regularly when they aren’t “that” dirty, is easier, faster, and less unpleasant than putting it off for too long until they are extremely dirty. It doesn’t have to be gross before it’s cleaned.
One method of cleaning the inside of the bottle is to put some dry, uncooked rice inside with some water, and vigorously shake to dislodge anything accumulating inside. Immediately rinse, and follow-up up with a touch of vinegar, too.
There are bottle cleaning brushes available, as well.
Pay attention to the inside gasket of the metal/plastic part, where the bottle connects to the spout, which is often forgotten. Use a q-tip or maybe a small toothbrush and a little vinegar and water to scrub it clean, then rinse thoroughly.
Vinegar is pet-safe, inexpensive, easy to use, and is commonly used for maintenance of small pet cages and accessories. Hamsters in particular can be sensitive to fragrances and residues left by certain common household cleaners like dish soap or cleaner sprays or bleach, which might not be detectable by humans, and vinegar is not as harsh and does not leave a residue when rinsed. A diluted solution of vinegar and water (50/50 is a common ratio) can be kept in a spray bottle for convenience. Vinegar is also great at neutralizing pee, and leaves glass and plastic streak-free. Yes, it has a strong smell when you first use it, but this dissipates when thoroughly rinsed off.
I take further precautionary measures with pet-safe disinfectants in between pets when reusing accessories and cages, or if there is the possibility of illness and a more comprehensive disinfecting is needed, but for the most part, I mostly use a vinegar solution for day to day tidying.

(English will follow )

