I have some bio media, basically ARM and coral skeletons that I grow pods in. It is fed and aerated. I think the pods actually died off from the heat, but the rock/media is still good. I also have a bin of Bioballs that I keep fed and aerated for when I set up a QT tank.
I am in Long Beach close to CSULB.
No charge. Just happy to make friends with other hobbyists close by. Ya never know when someone is going to need something.