also, don't think just because the fish is smaller than the shrimp or that their mouth is too small to eat a whole shrimp they are safe. Not the case, I made the mistake of trying some of my adult rcs with Dario Dario as an experiment, and would have NEVER thought they could handle an adult shrimp...not the case. Instead they waited til they molted and were nice and soft, and hello fat happy Dario. Didn't believe it til I caught one in the act of dismantling a full grown female rcs that had a fresh molt right next to it. If your not doing ottos or bristle plecos, I say your asking for trouble, it's just a matter of time. On a side note, very pretty shrimp and goodluck!