the redmushrooms were on a baseball ish size rock, with blue mushrooms and these cool tan ones that looked like they were taking some of the red color on them (its really cool how mushrooms can share colors) and the green frilly mushroom rock was a little larger with 25 or so mushrooms. It's a huge mother colony, and will easily multiple within time. Great prices, honestly and i would of probably bought more, but i need to save for a euroreef skimmer,sump, and tunze wavebox and i already spent more then i planned on spending. lol