Do Lava Rocks break down over time?
No. Lava Rocks are natural stones with inherent strength that remains constant. Can Lava Rocks be cleaned and reused? Yes. Lava Rocks can be cleaned with a dilute solution of hydrogen peroxide, (available at most grocery and pharmacy stores), rinsed with water and then reused. When do Lava Rocks need to be cleaned? When growing orchids in clear glass vases or bowls, over time algae will grow on the Lava Rocks (algae grows whenever sunlight shines through glass into water). The Lava Rocks should be cleaned if the algae becomes unsightly. Note: Adding a little hydrogen peroxide each time you water inhibits the growth of algae. The recommended dilution is: 1 part hydrogen peroxide (3.5 %) to nine parts water. This solution is also very good for your plants – hydrogen peroxide adds an extra oxygen molecule to the water. What is the recommended minimum amount of Lava Rocks beneath a plant? We recommend at least two inches of Lava Rocks beneath a small plant (in the case of bonsai trees you
