can someone tel me some good shrimp to buy

Amano shrimp eat algae, cherry shrimp are nice to look at, what are you looking for in a srhimp?

ghost shrimp are food!

Yeah, and good food at that! Not to mention, that you hardly can see them, even if they escape a fish's mouth. I personally love the cherry shrimp, they look very cool! And that coming from somebody who usually hates the "crab" look with all those legs that remind me of a cock roach!