Seachem Reef Potassium - 500ml Maxspect Gyre Probe cord: 3 ft cord

Probe cord: 3 ft cord

Follow the HI758 checker instructions exactly

it gives aquarists more precise control over system flow than a standard fixed-speed pump

Trim carefully as growth develops to maintain compact low colour and density

Seachem Reef Potassium - 500ml Maxspect Gyre Probe cord: 3 ft cordSeachem Reef Potassium 500ml Seachem Reef Potassium 500ml is a concentrated potassium supplement for reef aquariums, supporting coral growth, coloration, macroalgae development, and balanced nutrient supplementation. Seachem Reef Potassium for Coral Colour and Growth Reef Potassium provides targeted potassium supplementation without adding phosphate or dissolved organics. It is especially useful in reef systems where nitrogen and phosphorus