I'm not sure if the original was grey, but they are now
I have more caps in my main tank than I have room for.
The purple rim from Jim is growing like crazy.
I have a few I got from steve bak before the last swap that are finally getting larger,
and one that is really going to take over the right side of the tank some day.
then there are the caps i got from kasie, they are growing as well.
I took shauns advice and put most of them on the bottom, i did not have enough room for them all so some are still up on the rocks, those I'm worried about. I hate fragging them, it always ruins the nice circle shape some of them make.