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DIP & READ TOTAL HARDNESS   
Brand: Acquamarine
Total Hardness tests the amount of calcium and magnisium in water. Scaled from 425 PPM to zero. Total Hardness fresh water test is a 1 second dip and an immediate read. ... more
$12.00  BUY
ITEM ABOVE IS OUT OF STOCK
DISSOLVED OXYGEN (60 TESTS)   
Brand: Red Sea
Although plants and algae produce oxygen by day, they consume oxygen at night, so that extremely low oxygen levels may occur during the night. This usually happens in tanks wi ... more
$9.95  BUY
DISSOLVED OXYGEN TEST KIT   
Brand: Salifert
Oxygen is highly essential for all life forms. Especially corals and marine fish require oxygen concentrations at saturation level. This is because of the low solubility of ox ... more
$17.99  BUY
IODINE TEST KIT   
Brand: Salifert
Iodine is present in NSW (Natural seawater) in a very low concentration (0.06 mg/L or 0.06 ppm). Iodine occurs as different species. Some of them are iodide, iodate and hyp ... more
$28.99  BUY
ITEM ABOVE IS OUT OF STOCK
KH/ALK TEST KIT   
Brand: Salifert
Calcium alone cannot form the skeletal material of corals and allow calcareous algae to grow. Some other substances are needed as well. A few other constituents are carbonate ... more
$12.99  $11.69  BUY
ITEM ABOVE IS OUT OF STOCK
MAGNESIUM TEST KIT   
Brand: Salifert
Magnesium is present in NSW in a fairly high concentration (1300 - 1400 mg/L). Magnesium is an essential part of chlorophyll, which is necessary for photosynthesis. Without ph ... more
$19.99  BUY
ITEM ABOVE IS OUT OF STOCK