Reef Crystals®, an enriched sea salt mixture, contains a supplementary dose of calcium, vitamins and selected trace elements.

Developed for use in refined reef tanks, it was the first enriched sea salt formulation available to amateurs.

The introduction of important compounds at higher concentrations than in natural seawater ensures longer availability of the substances assimilated and quickly used up in a flourishing reef aquarium.

A special additive helps to eliminate surplus heavy metals, like copper, which are often found at excessive levels in flourishing reef aquariums. Each batch is analysed to guarantee its composition and uniformity.

Formats available:
10 litres, 2 kg (55 litres*), 4 kg (110 litres*), 7,5 kg (205 litres*), 15 kg (410 litres*), 25 kg (750 litre**).

* at a density of 1.024 ± 1
** at a density of 1.020 ± 1

Please note: before shipping, we remove the handles from the larger buckets to prevent breakages. You can easily reattach them when they get to you!

Please also note: the 20kg Box contains 10x 2kg bags. And the 2kg only option comes in a bag with no bucket.

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.