The largest Triops is now almost 1cm long including the tail, and I think he ate up the others! I took him out and put him in another tank to be alone, since there's 1 survivor in the old tank that's smaller than him. He's now called Mr. Meanass, and is already eating crushed-up fish pellets. Very, very, very mean.
Took a video of him, compare that to how he looked like yesterday - how come they grow so quickly? It's uncanny.