Blue clove polyps are several different beasts, at least 2. 1 small and considered a pest, also i'd love to buy it because i have a particular use for it, to cover gorgonia rock. Oddly i cant find it so far. Another large blue one is just like papaya, but blue. i am on the waiting list for the large blue one, wery difficult to find here and slow to grow. i do have good results with papaya now, after 2 fails due to insufficient nutrients. now i dose ammonium nitrate. before that i started dosing nitrate and they took off. i am glad they did because it is a major money maker. erradication? what r u talking about? just pill the stolon with froceps, glue to the plug and sell. easy, fast and nice. also i still have a lot of area for them to cover, i love them and planned plenty of space for them in my tank. i also have a pink one, it is indestractible but dull, i consider geting rid of it because of lack of color, pinkish similar to pulsing xenia but heads are larger and way easyer to control as it doesnt fly off.