Continuum Aquatics Halcyon Reef Salt 20kg is a precision-formulated marine salt mix designed to replicate the composition of natural seawater. Manufactured in small batches using reagent-grade and pharmaceutical-grade ingredients, it provides consistent quality and purity with no desalination by-products. Halcyon Reef Salt delivers the ideal balance of alkalinity, calcium, magnesium, and trace elements to support healthy fish, corals, and invertebrates.

Key Features:

• 20kg premium reef salt mix for marine and reef aquariums
• Precision formulation replicates natural seawater chemistry
• Made from reagent- and pharmaceutical-grade ingredients
• Provides stable parameters: 35 ppt salinity, pH 8.3, alkalinity 7.5 dKH
• Balanced levels: calcium 415 ppm, magnesium 1290 ppm
• Supports coral growth, fish health, and invertebrate wellbeing
• Manufactured in small batches for consistent quality

Continuum Halcyon Reef Salt 20kg is an advanced choice for reef aquarists, providing stable and natural seawater conditions for SPS, LPS, and mixed reef systems.

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.