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High efficiency spherical carbon
MICROBE-LIFT/TheraP has a hydrogen sulfide odor
Exhaustion is indicated by a pronounced discoloration of the beads to dark brown or black
Follow API Easy Care Guide and use NITRA-ZORB when:
Salifert Potassium Reef Test Tunze High efficiency spherical carbonPotassium concentration in natural seawater is approximately 400 ppm. Many aquarists have reported that a low potassium value reduces colors in corals. This can be corrected by increasing the potassium value to the normal natural concentration. Now you can accurately measure this value with the new Salifert Potassium Reef Test kits. Test resolution of 10ppm ranging from 0 to > 470ppm.