thanks for all the info. My guess is now that they are opened up that the purple ones are zoo's and the orange/brwn are the buttons. The purple ones with a green center are low to the rock, small and tightly packed together. While the others are up off the rock a bit with some more space between.
What I really want to get are some of the dramatic reds, metalliic blues, oranges, and something yellow for lots of color. But that will have to wait.
I did a search but do you guys have any other insight into making them grow like weeds
I believe you are correct it looks similar to the other fiji rock I have purchased before.