yes gerbil should aways have wheels with them
A nursing mother should not have a wheel in her cage, so please take it out.
Yes, 25 gallons is plenty for a gerbil.
It depends. If your gerbil is tired, not very long as he will go to sleep. But a young, active gerbil may run all night on its wheel!
My gerbil is a little fuzzy critter that loves to run all night long in his workout wheel.
Depends about the dog and gerbil. You should bring your gerbil to a vet (if they do gerbils).
because you dont have a wheel or you are not giving it veggies
It is possible. a hamster should not be kept with a gerbil. The hamster may also try kill the gerbil if it dislikes it.
no questions asked take your gerbil to the vets straight away
WHY is there wax on your gerbil? If hot wax fell on your gerbil its probably burned. You should take it to a vet.
No
Average adult gerbil weighs about 2.5 oz
you don't need to if you have another gerbil because they clean each other :)