The Aquasonic Calcium Test Kit accurately tests Calcium in Salt or Fresh Water. The test kit has a dual range, for measuring in steps of 25ppm or 50ppm. There is also a clear start and end point indicated by red and blue colours.
  • Too much calcium in water results in reduction of carbonate hardness levels and fluctuating pH.
  • For hydroponics, a concentration of calcium up to 200ppm may suit depending on the crop and stage of growth
  • At least 50ppm calcium is recommended for Aquaponics, with a ratio of 3.5:1 (Calcium:Magnesium)
  • Please refer to a good reference for each freshwater species of fish.
  • Seawater usually contains 350-450ppm, so for Reef Aquariums 380 – 450 ppm is recommended.
  • Good for between 50 and 100 tests depending on the amount of reagent used
  • Australian Made

(SKU: 128721)

Shipping Calculator

Enter the quantity of product and your suburb name to calculate shipping costs.

This calculator will show you the delivery charges for this product only.

Free Shipping Eligibility

Aqua Gardening offers free shipping on most orders above $249 that are not bulky items.  Once you place all the items you wish to buy in the cart, the combined shipping price will be shown in the cart, including Free Shipping if you are eligible. For full details please see our free shipping eligibility here.

Delivery Information

Back Order products

These are products we usually carry in stock but are temporary out of stock. These products will be back in stock within a few days. We can send you an email notification when they are back in stock if you click on the “Notify me when back in stock” link. See the full details here.

Special Order products

These are products that we do not regularly stock. These products will be ordered specially for you, or dispatched directly to you from our supplier. See the full details here.

Online Only products

These are products that are in stock in a different warehouse and can’t be picked up with the Click & Collect option. If you wish to collect these products from our Brisbane showroom, you can enter our address as the delivery address. Shipping costs may apply. See the full details here.

Click & Collect Only products

These products can only be collected from our Brisbane showroom as we can not ship them. If you place any of these products in your cart, you will only see the Click & Collect option at the checkout.

Fast Dispatch products

These are products that we have in stock in our Brisbane showroom, and they are available for immediate Click & Collect or Shipping. Keep in mind that if you have a product which is not listed as a Fast Dispatch product in your cart, there might be a delay on your order. See the full details here.


Limited Warranty (This product has been stored in a controlled environment to ensure you will receive the best quality product possible. Due to this reason this product is sold on a strict no refund or return policy, unless it falls under a warranty claim. )


60 Day Returns - We will provide a refund, exchange or store credit where you have decided you no longer want the product and it is in new, unopened condition. More details.