Are there any free gerbil info leaflets online that you can download. I've neve had one before and I plan to get two! Also do you guys have any tips on keeping them happy. Also, do you have to hold each gerbil for 10 mins every day or 1 gerbil 1 day and the other gerbil the next day? ( or maybe holding them both for 10-20 mins ) plz tell me what you guys do