Established 1977. Based in Singapore.
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The DiscuSoft tester is specially designed to indicate water softness in the fresh water aquarium.  Water softness is an important parameter for certain tropical fishes especially the Cichlid family, Cardinal tetras, etc. Although these fishes can survive well in hard water, they cannot breed in such environments.

Discus, for example, is one such fish that requires soft water to breed and spawn. Concentrations of below 100µS or about 3-15 dH water hardness are most suitable. The success and pride of an aquarist is to see their prized fish breed and multiply in their aquarium!

Apart from breeding concerns, there are other benefits of controlling water softness. When water is hard, it could mean chemical or waste loading in the water is increasing, which is the cause of cloudy water. This results in an unnatural and hostile environment for the fish.


Model: DiscuSoft
Range: 0 to 1000 µS
Resolution: 10µS
Accuracy: ±2 % full scale
Battery Type: 4 x 1.5V button cell (Alkaline A76 or equivalent)
Battery Life: Approx. 100 hours
Automatic Shut-off: Approx. 15 minutes
Automatic Temperature Compensation: 0 to 50°C or 32 to 122°F
Operating Temperature: 0 to 50°C or 32 to 122°F
Packaging Dimension Size (LxWxH): 180mm x 65mm x 25mm
Packaging Weight: Approx. 120gm
Product Dimension Size (LxWxH): 180mm x 32mm x 15mm
Product Weight: Approx. 70gm

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