Prometheus

Picked up a huge piece of drifted for my 40 breader. It was sitting in water for about two months but attached to a piece of slate. I figured it would be water logged but I took it off the slate and it floats!

Do I give up on this piece or maybe hot glue it to the bottom (glass) of the tank to keep it in place? I don't want to keep it on the slate since this may cause issues with the soil being compacted.?

Any solutions for still using this piece?

Diana K

Put it back on the slate.
Put the slate on the bottom of the tank, before the substrate.
Put the substrate on top of the slate.