“This was just the right amount to compliment some live rock I had already. I have a RS Reefer 350. I would estimate 2 of these would be just right for a RSR350. Rock pieces were large and nicely shaped with plenty of holes and jagged parts. Price is also good.”
“Large pieces, bought 40lb box of this and shelf rock which worked out perfect for my reefer 350! Rock is porous as soaked up water like a sponge when filling. Very pleased!”
