Things You'll Need
- Large bowl
- Cool water
Instructions
Determine whether you need to clean the Bio Balls. In most cases, hobbyists will not want to clean their Bio Balls, since doing so could kill the beneficial bacteria that provide the biological filtration. If you are moving your Bio Balls from a saltwater tank to a freshwater one, you may need to remove the excess salt. Otherwise, they should be left alone.
Remove the filter from your tank and carefully dump the Bio Balls into a large bowl. Add enough cool water to the bowl so that the Bio Balls are covered. Never use hot water, since this could kill off the beneficial bacteria living on the surfaces of the Bio Balls.
Shake the bowl lightly to dislodge any dirt or debris, then immediately place the Bio Balls back into the filter. Place the filter back into the tank.
Monitor the ammonia and nitrate levels in the tank for at least a week after the Bio Balls have been cleaned. If any of the beneficial bacteria were harmed during the cleaning, you may see a spike in these contaminants. If you do see ammonia and nitrate levels rise, there are products you can buy to lower them, but the best long-term solution is allowing those beneficial bacteria to recolonize and provide the biological filtration your tank needs to stay healthy.