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Oil slicks reduce the amount of gas exchange at the water surface and the air above
The dosage is very economical : 10 ml per 100 litres aquarium water every week
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It is a formulation of a special patented material bonded to a synthetic matrix
Salifert Potassium Reef Test Tunze Oil slicks reduce the amountPotassium 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.
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