After tearing down my 50g last night I find myself with an over abundance of rubble sized rock, which, when I transferred over to my other tanks, changed the aquascaping from "neat" to "too much rubble sized rocks in places."
So I will bringing some to the meeting that will be up for grabs. Oh ... wait ... it's already there.
Some of it is decent, some of it is ... well .. Ok some of it is oyster shells and I wouldn't blame anyone for not taking some, although one of them does have some acro encrusted onto it, that could grow into something some day. I might just see about scrubbing the copepods and worms out of these shells and toss them.
But there is definitely some rubble available to anyone who wants some.