Hanna Marine Magnesium Pocket Checker Powered Filter The tail changes from rounded

The tail changes from rounded to lunate when outgrowing the size of the model and changes colour to that of the adult

Performance: It has a surface skimming performance of 300 liters per hour (l/h)

One organic solution for all corals

Phos can maintain very low nutrient concentrations in your tank

encouraging natural drinking behaviours with its water-resistant leaves

Hanna Marine Magnesium Pocket Checker Powered Filter The tail changes from roundedHI783 Hanna Marine Magnesium handheld pocket checker is designed to determine the concentration of magnesium in saltwater aquariums. It features a single button operation system and is easy to use. The large LCD is easy to read and the auto shut off feature assures the battery will not be drained. SpecificationsRange 1000 to 1800 ppm MagnesiumResolution 5 ppmAccuracy 5% of reading @ 25 C (77 F)Light source Light Emitting Diode @ 610 nmLight detector