I used to have 10 lovely lil ratties, all very happy in 4 foot tanks (not all together!). Made lift off wooden tops with large mesh inserts for vent. Wish i could have some again, but my beloved wont have any of it!!!
Mine were so tame they would just sit on each of my shoulders while i was watching TV.
If "WE" had to go to the vets, one would "insist" on sitting on shoulder in car, while driving!! Some funny looks!!
Enjoy them, look after them and they will be constant companions!!
Lovely kissers as well!!!!