Corals require iodine as a de-toxifier, as a protection against uv radiation and as a natural defense against many parasites. Iodine is present in natural sea water in a very low concentration (0.06 mg/l). Iodine occurs in natural sea water in different compounds. These include iodide, iodate, molecular iodine and hypoiodite. Generally when we say iodine we mean one or more iodine compounds without clear distinction. Natural sea water contains predominantly iodate and to a lesser extent iodide. Salifert's Natural Iodine supplement contains a large portion of iodate and also some iodide in similar proportions to natural sea water. Both are present as their calcium and magnesium salts, this has been done because Salifert's research has shown that iodate is complexed with calcium and magnesium in natural sea water. Another advantage of using these salts is that no ionic imbalance is created unlike when potassium or sodium salts are used. Salifert stands alone in offering such an advanced well thought out formulation. Directions: Shake well before use. Dose 5ml per 100lts once every 2 to 3 weeks. Every 5ml per 100lts will increase the iodine concentration by approximately 0.04mg/l. Maintain an iodine concentration of 0.03 to 0.10mg/l.

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.