I only have VHO`s and they are mid level in the tank.
Mike ,..for as much as I love the mushrooms,...for some reason, I find it very difficult to raise the Florida ricordeas ,...I have no idea why ,..all the other varieties grow very well,....especially the hairy ones!!!! I just bought another rock with some nice orange ones on it,...got my fingers crossed that one of these days they'll take off.
As you know, I have a few mushrooms, but the orange Florida ones are trickier. Mine "seem" to like lower lighting.