Combination hamster cages made of plastic and wire have some negatives associated with them. You have to think about these before buying this type of hamster cage.
Size: Many of the basic one-story plastic and wire combination hamster habitats will not have enough space for a normal sized Syrian or Teddy Bear hamster. The plastic and wire cage complete kits usually come with an exercise wheel, a water bottle, and a food bowl. These will all take up space inside the cage. Then your Syrian will need a few toys to chew on as well as both a bedding and a bathroom area. Pretty soon your Teddy Bear or Golden hamster can be restricted to a small area inside the cage.
Air circulation: Moving air around is a big deal in hamster cages. Hamsters need air circulation because they exercise a lot and because there are fumes from where they go to the bathroom. Both this type cage and aquariums have a problem getting enough air circulating inside the cage. If your plastic cage has a few stories with more wire bars, that would help circulate the air. But if there’s more plastic than wires, there will be less air circulation and this is bad for your hamster. Also, unless your climbing tubes have some holes in them, air won’t circulate much inside the tubes.
Cleaning: All hamster habitats have to be cleaned out every once in a while but this plastic and wire cage can be particularly tough when it comes to cleaning. You have to take the cage apart to clean it. With a wire cage you just take off the top, clean the wire bars, and then clean out the bedding in the base.
With a combination hamster cage you have to do all that as well as take all the plastic tubes out of their holes. That means you have to be extra careful so none of the plastic breaks. Then, even when you get them out, you have to clean all the pieces individually. So there’s a lot more cleaning involved than with a wire cage.
Security: A wire door with a strong latch usually provides good security for keeping your hamster in its cage. A good latch is one that snaps tightly to the wire bars. Some people even use an additional wire to make sure the door stays shut. If the door doesn’t have a latch, your hamster can easily push it open.
On some combination plastic and wire cages the doors on top are just plastic. If these doors don’t have a strong latch, this is an area where even a dwarf hamster can push the door open and escape.
Also, you want to be sure there are no cracked plastic pieces when you finish putting together this type of cage. Your hamster will try to nibble on the crack to make a hole so he or she can get out of the cage.
For the positives about this cage, read Plastic and Wire Hamster Cage Positives.