I am currently using these 3 supplements in the photo. Cal w/o D3 every feeding, Cal w/D3 2x a month and Vit w/o D3 2x a month (for a 2.5 year old Panther). As you can see, the vit is going to expire. I am interested in switching to Repashy brand and was hoping someone could tell/show me what is best to use and how often or if its recommended that I don't switch and just replace the reptivit. Thanks in advance.