LITTLE KNOWN FACTS ABOUT LAVA ROCKS FOR AQUARIUM.

a bonus to this would be, the saturated zone will supply dampness to the plant prolonged following watering as the water evaporates slowly and gradually and moves up in to the soil. The bacterial cultures inhabiting the rocks will consume nitrates and make oxygen and nitrogen in return. So, the h2o will be cleaner and even more well-oxygenated. F