if you aren't looking for incredibly large pieces, fintique has some, and it's crazy cheap too, i think it's 1.50 a pound for some honeycomb type rock, and 2 a pound for dead coral skeletons, no acro skeletons, more lps skeletons. fair warning, they don't have near enough in stock for a 225, but they do have some nice pieces, cheaper than i've seen anywhere else. as far as ordering dry rock i have heard great things about marco rock.