it was fairly easy, i removed about 5g of water first, put all my rocks in it, then filled the rest of the tank up to cover it.
then i scooped out the cc with a container and dumped it in a plastic bag.
i then started placing rocks in, but was completely blind because the water was extremely cloudy from the cc movement.
i placed most my rocks in, then cut a hole in the bag, placed the bag in the water near the bottom, and pretty much layered the bottom.
i then smoothed it out as best i could without seeing it, and then placed ther est of the rocks in, and put in 5g of newly mixed water, and topped off with the water i removed initially.