hey
first off congraulations,
second i used to have mine under PC, very high up,
but under halides i had it at the bottom.
everybody who i know that has a frag of this, has kept theres on the very botom of thier metal halide lit tank.
i have found mine very difficult to feed, and rarely see feeders, more of an open slit on the green coralite.
i would glue yours to a piece of rock and let it rncrst over it, as most people i know, have done that, and it seems to grow very nicley and circulary.
mine seems to be very slow growing, but i have heard from other that its a moderate grower.
keep your parameters, the same as you do for all your lords and other echinos you have.
show some pics!!!!!!
(;
joe