First off, let’s get one thing straight: Robos are not like other hamsters. They’re the tiniest dwarf hamster breed, only growing up to 2 inches long as adults, and they’re unbelievably active and skittish. I totally wasted $40 on a fancy plastic pet store cage my first week owning a robo, only to find the little guy squeezed through the ½ inch bars the first night and hid behind my fridge for 3 hours. Don’t make that same mistake, yeah?
First and most important product you’ll buy: their enclosure. A lot of misinformation online says a 10 gallon tank is enough, but nah, robos need way more space to run, dig, and explore. The absolute minimum I recommend is a 20 gallon long glass tank, or a bin cage that’s at least 30 inches long and 15 inches wide. I’ve tried wire cages too, but skip em entirely—robos are so tiny they can squeeze through any gaps bigger than ¼ inch, and they love to kick bedding everywhere, so wire cages leave a huge mess all over your floor every single day. My top pick for enclosures right now is the REPTI ZOO 20 gallon glass terrarium. It has a sliding, lockable screen top so you don’t have to worry about your robo escaping (they’re way better climbers and jumpers than you think), and the thick glass holds deep bedding really well. I paid around $80 for mine last year, and it’s held up perfectly even when my current robo Mochi chews on the edges sometimes. If you’re on a tight budget, a 110 quart plastic storage bin with air holes drilled in the top works just as good, that’s what I used for my first robo, cost me only $15 at Walmart.
Next up: bedding. This is another spot where so many new owners mess up. First rule: never buy pine or cedar bedding, those have natural oils that are super toxic to hamsters’ tiny, sensitive lungs, and can give them bad respiratory infections that are really hard to treat. My go-to bedding mix that I’ve used for years is ⅓ unbleached aspen shavings, ⅓ unscented paper bedding (I use Carefresh Natural, no fancy scents!), and ⅓ washed play sand. Wait, why sand? Robos are desert hamsters in the wild, so they love digging more than anything else. I put a full 6 inch deep layer of this mix all across the bottom of the enclosure, and my robos have spent hours digging tunnels and little dens that they sleep in during the day. Skip all scented bedding entirely, even if it smells like lavender or berries, it’s way too harsh for their noses and will stress them out. I tried coconut coir bedding once because I saw it recommended on TikTok, but it got moldy super fast when Mochi peed in it, so I don’t recommend that unless you wanna change your bedding every 3 days, which is a total pain. I spot clean the bedding once a week, picking out any wet spots, and only do a full change every 4 weeks, so I don’t remove all their scent and stress them out.
Now for toys and enrichment, this is where you can have fun, but don’t waste money on all the cutesy plastic junk the pet store tries to sell you. The number one non-negotiable toy for a robo is a silent, solid-surface exercise wheel that’s at least 6.5 inches big. Skip any wheels with rungs, their tiny little feet can get caught in the gaps and break super easily. My favorite wheel by far is the Niteangel Silent Spinner. It’s 100% quiet even when Mochi runs on it for 3 hours straight at 2am, I don’t hear a single squeak through my wall. I tried the cheap $5 wheels from Amazon before, and they started squeaking so loud after a week I had to throw them out, totally not worth the savings. Other great, cheap enrichment: cut up toilet paper rolls into 2 inch pieces, they love running through them and chewing them up to line their nests. A sand bath is another must-have! Get a shallow ceramic dish, fill it with plain reptile sand (no calcium sand, that’s toxic if they eat too much of it), and they’ll roll around in it every day to keep their fur clean and soft. I also have a small wooden hideout for Mochi, she sleeps in it all day, it’s way better than plastic hides cause she can chew on it to keep her teeth trimmed down (hamster teeth never stop growing, so they need stuff to chew on all the time).
Feeding time! A lot of people just grab the first generic hamster food mix they see at the pet store, but most of those are full of junk like added sugar, colorful filler bits, and crushed corn that robos don’t need and can make them sick. My top pick for food is the Higgins Sunburst Gourmet Hamster Mix. It has all the seeds, grains, and dried veggies that robos eat in the wild, no added sugar or weird artificial stuff. I give Mochi 1 tablespoon of food every other day, that’s all she needs, you don’t wanna overfeed them cause they can get obese really easily, which leads to all sorts of health problems. For treats, tiny bits of dried mealworm, dried carrot, or a single sunflower seed once a week is perfect. Don’t give them fruit or sugary treats at all, robos are super prone to diabetes, so even a tiny piece of apple can mess with their blood sugar really bad. I made that mistake with my first robo, gave him a little piece of strawberry once, and he had diarrhea for 2 days, total nightmare, so save the sweet stuff for other pets.
One question I get all the time is: can you keep multiple robos together? The short answer is only if they’re same-sex siblings that you got when they were under 8 weeks old, and you have a huge enclosure (40 gallon minimum, no exceptions). I tried keeping two female sibling robos together once in a 20 gallon tank, and they started fighting really bad after a month, had to separate them immediately cause one got a little cut on her ear. If you’re a first time owner, just get one robo, they’re totally happy living alone, you don’t have to worry about them getting lonely at all. Also, don’t expect to hold your robo a ton, they’re super skittish and fast, most of them don’t like being handled at all. I’ve had Mochi for a full year now, and she still runs away when I try to pick her up, that’s totally normal for their breed, they’re more of a “watch and admire” pet than a cuddle pet, don’t take it personal if they don’t wanna snuggle.
Quick roundup of products you should skip entirely: tiny plastic carry cages, scented bedding of any kind, runged exercise wheels, calcium sand, sugary yogurt drops or fruit treats, and plastic chew toys with small parts that can break off and be swallowed. All of that stuff is either dangerous for your robo or a total waste of money. If you stick to the products I recommended in this guide, your robo will live a long, happy life. I’ve had robos live up to 3.5 years with this exact setup, which is way longer than the average 2 year lifespan most owners get, so it definitely works. If you have questions about any specific products I didn’t mention, drop em in the comments, I’ve probably tested em!