Seachem Reef Calcium 500ml

Seachem Reef Calcium™ is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH.
Polygluconate complexation confers several benefits: it increases the bioavailability of the calcium, it provides a rich source of metabolic energy to help maintain peak coral growth, and it prevents calcium precipitation/alkalinity depletion. Polygluconate contains no nitrogen or phosphorous, thus it is biologically impossible for it to lead to algae growth in a properly maintained reef system.
Reef Calcium™ may be used alone to maintain calcium but will provide enhanced levels of coral growth when used in conjunction with an ionic calcium supplement (Reef Complete®, Reef Advantage Calcium™). Reef Calcium™ is intended to maintain calcium levels; if calcium becomes seriously depleted one should either perform a water change or use an ionic calcium supplement to restore the depleted level of calcium.

Why Seachem Reef Calcium is Different
Reef Calcium™ utilizes a chained organic calcium rather than an ionic calcium. When a coral absorbs a molecule into its tissue, it uses the same amount of energy regardless of molecular size. However, charged molecules require more energy. When an uncharged molecule of Reef Calcium™ is absorbed, the coral acquires multiple calcium atoms as well as an easily metabolized carbohydrate with less energy expended than it uses for ionic calcium uptake. Therefore, at lower calcium levels, corals can still take in as much calcium through our organic chains as they would at much higher levels of ionic calcium.
Directions
Add 1 capful (5 ml) per 80 litres twice a week. You can increase the amount or frequency based on growth response but do not exceed 3 capfuls per 80 litres per day. Each capful will raise calcium by about 3 mg/L.

We aim to dispatch all orders the same working day provided it is received before 1pm and payment confirmed, subject to stock availability. Orders received after this time may not be dispatched until the next working day. In the unlikely event of an item being out of stock, we will contact you via email to advise you of an estimated delivery date, to give you the option of cancelling or waiting.

Small and lightweight items (below 2kg) will normally be sent via Royal Mail 1st class, and will be delivered within 5 days, usually next day.
Larger orders with a total weight over 2kg will normally be sent via parcel carrier for delivery within 2 working days.
Any orders placed after 11am on Saturday will be dispatched on Monday. If the order is placed over a bank holiday it cannot be dispatched until the first working day.
We reserve the right to use the most cost effective service to get your order to you as quickly as possible.

For more details, see delivery info.