I don't know if you mean the brand or kind so I will answer both. They need Calcium with D3 dusted on their feeders. You should also dust once a week with a multivitamin. I keep a capful of calcium without D3 in their tank at all times. Now the brand is all personal preference and what they will like. I use Repashy Calcium Plus which has both Calcium with D3 and mutlivitamin so I dust them every other time and I use Repcal Calcium without D3 for in their tank.
Thanks christina you answered my question, you always come in handy lol thanks a lot.. I have seen lots of different types on line but I like to see people opinions and thoughts also.. yet again you have helped me out!