If you’re looking for a creative way to cover the back glass of your aquarium, also hiding your aquarium equipment and wires in the process, then look no further than your corals. Corals will grow on just about anything, and most types will even grow directly onto the glass. Zoanthids are particular good at this, and will start to make the journey up the back wall of the aquarium as the rockwork starts to get full of corals. Mushroom corals will also grow in this fashion, and there’s nothing quite like the site of a wall full of mushroom corals. If you have trouble getting the corals to grow on the glass, there are plenty of magnetic products that help get corals onto the back wall and give you a little extra real estate.