Sorry if this is in the wrong place. Does anyone have any suggestions on what they think are the best hideaways/climbing things for two gerbils? I have a fair amount in the tank already, but I'm looking to replace some that they don't use, like their coconut hide with something more fun and interesting for them. I got the gerbil's (2 brothers) almost a week ago, they are both settling in and eating & drinking as well as making the tank (20 gallons) their own by moving their bedding etc, but neither will take or eat the gerbil treats I have for them when I'm rewarding them for sitting in my hands etc. Is this because they need more time to settle in and get used to me or am I better replacing these treats with something like sunflower seeds? (the treats are gerri gerbil yummies, the same brand of food I am giving them). Both appear healthy, active and happy so I'm assuming them not eating treats is nothing to be concerned about if they are eating their complete food and drinking? Thanks!