Salifert Nitrate NO3 Test Kit misc inverts and wash the dosing container

and wash the dosing container between refills

(The DS-4 has a thinner tubing than previous models—performs a more precise dosage)

Perform a large water change if distress is observed

Heating function is indicated by a control lamp

Even without biological interference calcium carbonate would be formed and would deplete calcium and alkalinity or carbonate hardness without fulfilling any function

Salifert Nitrate NO3 Test Kit misc inverts and wash the dosing containerNitrate testing When an aquarium has insufficient regions deprived of oxygen (= anaerobic zones) or denitrification proceeds incompletely then nitrate will build up. A too high nitrate concentration can result in unwanted algae growth and these might irritate corals in their neighborhood. Nitrate as such also retards coral growth. The nitrate concentration in a proper functioning reef aquarium should preferably be lower than 1 mg L. Fish only