A good odor neutralizer?

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I got another Glider a few days agao.Her name is Gidget and she is adjusting well to her new home and companion(Gizmo).Gizmo never smelled all that bad before....but now that he has a female with him....he has been marking his cage and her.The smell has gotten so bad and the the stuff I'm using(Glider Glo)doesn't seem to work all that well.I was just wondering if anybody knew of a better product which is safe to use around my Gliders?Or is there a way to controll the smell with their diet?