1.Register an account
You can register for a new account by clicking on the button below and filling in your details in the registration form. If you have not yet purchased an ICP test please visit one of our approved stockists.
2.Enter your aquarium details
Once you have registered enter the barcodes that you received in your ICP-OES test pack, along with your tank name and aquarium net volume (water volume in litres minus the rock, sand and equipment displacement). Please ensure you enter the RODI barcode separately.


3. Stick the barcodes to the vials
Stick the barcodes to the relevant vials along the via (not wrapped around).
IMPORTANT: Please add the barcode that finishes with “r/o” to the RODI water vial (e.g. 0001-xx3xxx-1111-r/o should be attached vertically to the RODI water test tube).
Please note if you bought the Saltwater only test your pack will only contain 2 saltwater test tubes.
4.Taking a sample
Rinse the 2 saltwater vials 2 – 3 times with your aquarium water and then fill with with your saltwater. If you purchased a pack with both the saltwater and RODI analysis, the third vial rinse it with RODI water and fill it with your R/O water only. IMPORTANT: Please send only RODI water in the RODI vial.
5.Post the vials
Take the “address label” out of the package, use it in the envelope supplied with at least a large letter stamp and place the vials inside the padded envelope. Use the adhesive strip seal to close the package.
For international customers please use the following HF Tariff in the customs declaration: 3923301000 with "Saltwater for analysis" as description and a declared value of £ 0.5.
Please note that if for any reason the address label is missing, please address the pack to:
Reef Zlements ICP Lab
28 Alfric Square
Peterborough PE2 7JP
United Kingdom