Nov 27, 2014 #1 Caliban07 Aquarium Advice Addict Joined Aug 18, 2013 Messages 6,271 Location Manchester UK How long does this stuff leach calcium and magnesium? How often would you replenish it in a filter? Sent from my iPhone using Aquarium Advice
How long does this stuff leach calcium and magnesium? How often would you replenish it in a filter? Sent from my iPhone using Aquarium Advice