what is an ORA? and I don't know what a pally is. but I did notice that some of them did have a nice blue color to them, especially in the tips. I bought it mostly for the bright orange ones. I'm hopping the orange one's will spread more. I can't get MH for my tank. It's a 12 aquapod and the only retro fit cover things leave my tank open. We take care of menatally disabled adults and I'm afraid they would "Add" things to my tank if left uncovered. I'd probably wake to find Barbie sitting on the bottom of my tank!!