I had one for about 2 years. Only had the one, so don’t know differences between other pizzas (personality differences)
It is as sticky if not more sticky than Haddoni. It will certainly eat fish. I got mine around 6” and grew with moderate feedings to about 10” after about 2 years. I don’t know how big they can get but to damper the growth, like all nems, lack of food slows growth. Strong light made the color and vibrance really pop. A cool anemone but super sticky for sure. Fish like hawks or any that don’t have swim bladders, bottom or rock dwellers may unintentionally land on it. Mine stayed in the rocks and attached a third down from the top, buried its foot in the rocks like a BTA. It chose a lower flow area.