Aquaforest products are manufactured in the EU under strict laboratory supervision to meet the highest quality standards. Each product is prepared from carefully selected raw components in quantities proven to yield consistent composition. Our entire salt range is tested in batches with ICP-OES during manufacturing process. Test results processed since May 2017 are available online.
We mix our Marine Salt in 1 metric tonne (2204lb) batches, and 3 separate samples per batch are collected during the production stage for testing. Each of these samples is dissolved in 15 litres (4US gal) of RO water. Our experienced team of professionals perform ICP-OES analysis to verify that the chemical composition is within consistent range, and to rule out the presence of unwanted contaminants at the same time. Note: Even though our salt is thoroughly mixed, not every bucket/box will be identical. The parameters can vary slightly between containers and around a 2-3% variation is acceptable. This fluctuation is a result of both physical properties of the mix and the limitations of the processing techniques available. These variations are still smaller than the typical margin for error for popular hobbyist test kits.
Batch number can be found in 3 different locations:
There are no hobbyist test kits available on the market that are able to measure small discrepancies with 100% accuracy. Variations of parameters are typically still smaller than the acceptable error of the test kits available, and therefore there is little chance of a negative impact on aquarium life.
We recommend to prepare at least 15 litres (4 US gal) of saltwater. Mix your RO water with 585g (20.63 oz) of salt, and perform the test at least 2 hours after fully dissolved. Always check the salinity in which the test was made, as this will influence the measured parameters. A salinity refractometer is recommended, together with a calibration fluid. *Note that salinity readings also depend on the temperature. Please check your salinity at 20°C (68°F).
If you detect a small difference in parameters between your tank and the salt, the impact is also minor. For example if you make the typical recommended 10% water change, the change in parameters of your tank will only be 10% of the difference. If the Calcium level in your aquarium is 430ppm and the water change water is 450ppm, the difference is 20ppm. But as you are actually only changing 10% of aquarium volume, 10% of that 20ppm is only 2ppm. Changing water this way, with that discrepancy, would only result in a difference of 2ppm of Calcium. That’s 0.5%. E.g. Tank Ca = 430 ppm. New salt water Ca=450 ppm. The difference: 450-430 =20 ppm. Estimated impact: 10% *20 =2. Tank Ca after change will be 432ppm.