I think they're one of the most beautiful solid color palys. You can see by the zoas in the picture my biggest polyp is about an inch. They don't seem to completlely take over a tank like some of the others do.Yea I think the green cup Paly may be the the winner, they’re almost an inch in diameter no where near ur grandis, thank you again!
Looks pretty similar, mine aren’t as neon green unless under blue light, almost a mix of neon/dark green... but these replies steer me in the right direction@vetteguy53081 actually came up with the correct name. Nuclear Green seems to be correct. They sell for about $35.00 on Tidal Gardens.