Unfortunately, it seems Fishy decided the shrimp would be a good snack..
I found it at the bottom of his tank dead.. and missing both it's eyes!
I don't think I want to know what Fishy did to it.
Oh yeah, mine do that too. XD I usually just stick with Ghost shrimp because of this, at a quarter a piece, i dont get upset when the bettas decide they want seafood. XDD
Hornwort is also a good suggestion with shrimp. I have a big piece of it and if the shrimp are nowhere to be seen it's a good bet they're "hanging out" in it. I've had two groups of six already, and I'll keep getting them. The first group died, because of delays in the delivery of my plants. However my betta is such a fighter that he looked at the mirror on my powder compact for five seconds and then swam away without doing anything.