Hard to say for sure, but I would actually guess Fromia pacifica. F. indica typically has dark pointed tips, not light pointed, and they also typically display a heavier "veining" or "marbling" pattern across the body (it looks kind of like a snakeskin or tiger-striping).These is the species of starfish I plan to use for the experiment. They're relatively small, Fromia stars (pretty sure Fromia indica) which I have some experience with, and are known natural biofilm consumers that will also readily eat or try to eat other foods.
Like I said, 99% sure they're Fromia indica stars but if anyone knows otherwise and has supporting evidence that they're a different species please feel free to comment.