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Place ACTIVA BLOCK in your fish tank/sump tank or any water holding tanks that you wish to remove toxic pollutants/colouration/odours/medication
When not in use
and organic nutrients
Nitrosospira and Bacillus Species
add 16 g (1 tablespoon) for every 80 L (20 US gallons) when setting up an aquarium or when making water changes (add to new water)
Eshopps S-200 EDDY Bubble Plate Ocean Free Spare Part Place ACTIVA BLOCK in yourEDDY Bubble Plate (Increased Contact Time w Easy Twist Release) Groundbreaking design to incorporate blades that will allow for bubble to rotate and tweak the duration of contact time Precise engineering of brand new bubble plate design to increase contact time for optimal skimming Replacement for S 200 Skimmer
