Lee's 6" Slim Jr. Gravel Vacuum Cleaner, Self-Start Substrate Both of these sources add

Both of these sources add to either nitrogen or phosphorus as well as potassium

Aragonite Substrates - Recognized globally for their purity and precision

when a filter stops working due to power or mechanical failure or if existing beneficial bacterial colonies are lost due to the use of medications or sudden change in water conditions

Turn off UV sterilizers for 48 hours after application

This medication will cause a slight discoloration of water which can be easily removed by adding activated carbon to the filter

Lee's 6" Slim Jr. Gravel Vacuum Cleaner, Self-Start Substrate Both of these sources addDesigned to separate debris from gravel and remove it from the aquarium while performing routine water changes. Produced specifically for designer aquariums, other small aquariums & fish bowls. Cylinder : 1" diameter X 6" Long