I've been looking into different calcium and vitamin supplements and I'm sort of lost. There are so many brands and so many different ingredients. So my question is with calcium I see some that have D3 and some that don't and some with phosphorus and some without. What is best? And as for the multivitamins, what exactly am I looking for for vitamins? I found a supplement that contains calcium and the multivitamin in one. Any experience/thoughts on it? Zoo Med Reptivite Reptile Vitamins at PETCO

Thanks