Quote Originally Posted by Cubie View Post
It's T-Rex 2:0 calcium, no phosphorous with D3

I've never used that brand. These products do have expiration dates. If you are questioning its quality/freshness then don't use it. The product I use has never had a fish smell.
This is what I use.

Amazon.com: Rep-Cal Reptile Calcium Powder with D3: Pet Supplies