Aquatic Life TDS Tester Pen Calcium & Alkalinity 40 lb bag is practical

40 lb bag is practical for larger aquariums or multi-bag reef builds

Pair the pump with Mobius if app control is desired

It will accept items such as mysis shrimp

Along its back is an orange stripe

The medium trap gives larger or more cautious fish extra entry space

Aquatic Life TDS Tester Pen Calcium & Alkalinity 40 lb bag is practicalAquatic Life TDS Tester Pen Aquatic Life TDS Tester Pen is a handheld total dissolved solids meter for quickly checking source water, RO water, RO DI output, aquarium preparation water, and other water quality applications. Aquatic Life TDS Tester Pen for RO DI and Aquarium Water Checks This compact TDS meter helps aquarists monitor how much dissolved material remains in water before and after filtration. It is especially useful for checking tap