Sicce Ultra Zero Utility Pump Sicce Seachem lists the buffering range

Seachem lists the buffering range as pH 6

Commercial Pack Benefits for Phosphate and Silicate Control

Nutrient-rich algae blend provides complete balanced nutrition

or other compatible liquid supplements need to be added consistently instead of by hand

Coordinates with Fluval Flex 15 US gal / 57 L aquariums including item numbers 15006 and 15052

Sicce Ultra Zero Utility Pump Sicce Seachem lists the buffering rangeSicce Ultra Zero Utility Pump The Sicce Ultra Zero Utility Pump is a fully submersible utility pump for aquarium water changes, sump cleaning, saltwater mixing containers, water tanks, rainwater storage tanks, swimming pool covers, basement draining, and other water removal jobs where low level pickup is useful. It is designed to pump cloudy water without large debris and can draw water down to a very shallow level. Sicce Ultra Zero for Aquarium Water