My two young female gerbils are chewing on the CritterTrail plastic tubes I have connected to the cages. They have tons of chew toys, food, and space. I've placed two toilet paper holders in their large nest area. It's helped a little, but they still chew on the plastic tubes. Which is VERY noisy, and I don't think chewing on plastic is good for them compared to natural wood.
You would just be better off getting a 20 gallon long tank or a bin cage. The cage you have now is too small and it would be hard to safely connect it to a tank.
Unfortunately rodents will most always chew plastic. You were smart in trying to give them chew toys, but with a majority of your cage being plastic (I assume) it's inevitable The best I can recommend is to buy a new cage without so much plastic.
You're right, plastic is not good for them. I recommend getting an aquarium (I have a 55 gallon myself). For two gerbils a 20 gallon would be okay, but the bigger the better. Fill the aquarium with wood toys and cardboard (hideouts, playground, etc). Trixie Pet products are nice for gerbils. I know the CritterTrail habbitats look nice but they are not worth it. The gerbils can get sick/hurt from the plastic and there isn't adequate space. Good luck.
No matter what you do, I'm afraid they're not going to quit chewing until they're bored with it. I went through the same deal. What I suggest is take them out and place them in a pin of sorts and place different objects (that you don't mind being chewed on) in the pin with them. Try to get them to find something they like more than that. If not then hell, you tried. It won't hurt them eating the plastic dear so don't worry about that. They don't always eat natural wood anyway they prefer, well, whatever they can get their paws on :) Good day and good luck
what they due, if you in a cage see freedom you try escape same way.
