I bought the frozen brine shrimp that come in little cubes that you pop out and thaw and each one has a crazy amount of the little guys. I was told by the petstore girl, who actually seemed really knowledgeable about bettas, that I could out a cube in a bowl with a bit of water and keep it in the fridge for awhile. But when I thaw it, the shrimp are nice and pink for a 2-3 days then they turn a darker color. Does that mean it's bad and I shouldnt feed them to my fish? The girl said the package would last Walter his entire life and I can see why since there are SO many shrimp in one tiny cube. But if they go bad after 2 days it seems like a big waste....
Does anyone else have this problem? Or maybe you guys just do something different?