Chromium is a trace element present in small quantities in the seawater of reefs all around the world.

Chromium is used to form enzymes for fat metabolisation in cells as such may have positive impacts on coral skeleton calcification, health and coloration.

Chromium gets depleted from the water in our tanks quickly. Naturally, Chromium in seawater varies strongly and is usually between 0.2-0.6 µg/l.

Too low chromium values lead to slow growth. Chromium plays an important role in the absorption and use of fatty acids in corals.

On a scale of 1-10 (1 low, 10 high) we classify the importance of chromium supplementation a 4 and suitable for experienced reefers only.

The use of our 2 part systems like Complete or pHplus will supplement Chromium helping to maintain adequate levels over time.

It is recommended to dose Chromium continuously (as needed) in as many small doses as possible. This will ensure Chromium is present and available in the water (despite precipitation and potentially being below the ICP limit of detection).

For ease of dosing and if you wish you can dose our elements via a dosing pump mixing them together in 2 solutions.

The following Reef Zlements elements can be mixed with chromium – barium, iron, cobalt, copper, manganese, nickel and zinc.

Please note that given the different products available in the market the above only applies to Reef Zlements trace elements and that we cannot guarantee the safety of the mix with other products.

To reach the desired level of 0.50 µg/l please dose 0.18 ml of Reef Zlements Chromium per day for 28 days.

Cobalt is a trace element present in a low concentration in oceans, varying between 0.002μg/L in north central Pacific Ocean and 0.39μg/L in Indian Ocean.

Cobalt is an integral part of vitamin B12 and plays a fundamental role in DNA; cell processes along being a nutrient for macro algae. It has been suggested that Cobalt might be a limiting factor of the bio-availability in the oceans and therefore an important trace element for the life of our animals.

Insufficient cobalt values reduce growth and colour formation.

Due to the extremely small amount needed in our aquariums, Cobalt is usually below the ICP detection limit. Nonetheless, despite potentially being present in undetectable levels the correction to reference levels will be ideal.

On a scale of 1-10 (1 low, 10 high) we classify the importance of cobalt supplementation a 4 and suitable for experienced reefers only.

The use of our 2 part systems like Complete or pHplus will supplement cobalt helping to maintain adequate levels over time.

It is recommended to dose Cobalt continuously (as needed) in as many small doses as possible. This will ensure Cobalt is present and available in the water (despite depletion and potentially being below the ICP limit of detection).

Please note that for reference one drop is approximately 0.02-0.05 ml. If your recommended dose is below 1 drop per day, feel free to dose every other day (or less).

For ease of dosing and if you wish you can dose our elements via a dosing pump mixing them together in 2 solutions.

The following Reef Zlements elements can be mixed with cobalt – barium, iron, chromium, copper, manganese, nickel and zinc.

Please note that given the different products available in the market the above only applies to Reef Zlements trace elements. We cannot guarantee the safety of the mix with other products.

To reach the desired level of 0.20 µg/l please dose 0.17 ml of Reef Zlements Cobalt per day for 12 days.

Copper is a trace element present in small quantities in the seawater of reefs all around the world.

Copper is an essential trace element that kept in small concentrations has positive impacts on coral skeleton calcification, health and colouration along being needed for multiple biological processes of corals and other organisms.

It is important to check Copper levels through ICP analysis and ensure adequate levels and stability by dosing a Copper supplement as needed.

Naturally, Copper in seawater varies but its concentration doesn’t go above 3 µg/l.

On a scale of 1-10 (1 low, 10 high) we classify the importance of copper supplementation a 5 and suitable for experienced reefers only.

The use of our 2 part systems like Complete or pHplus will supplement copper helping to maintain adequate levels over time.

It is recommended to dose copper continuously (as needed) in as many small doses as possible. This will ensure Copper is present and available in the water (despite precipitation and potentially being below the ICP limit of detection).

Please note that for reference one drop is approximately 0.02-0.05 ml. If your recommended dose is below 1 drop per day, feel free to dose every other day (or less).

For ease of dosing and if you wish you can dose our elements via a dosing pump mixing them together in 2 solutions.

The following Reef Zlements elements can be mixed with copper – barium, iron, chromium, cobalt, manganese, nickel and zinc.

Please note that given the different products available in the market the above only applies to Reef Zlements trace elements and that we cannot guarantee the safety of the mix with other products.

To reach the desired level of 0.20 µg/l please dose 0.20 ml of Reef Zlements Copper per day for 10 days.

Iron is present in reefs all around the world, being one of the most important elements for all animals and plants in our aquariums. Having a strong role in many different metabolic processes, including the transport of oxygen in the blood of animals.

Iron gets depleted (precipitates) from the water in our tanks very quickly.

Iron has been known to have a positive impact in aquariums where macro algae is present and to improve green colours.

It also plays an important role in the availability of nitrogen.

A deficiency of Iron can result in corals and biofilms (bacteria) not being able to process nitrogen compounds as well, if at all.

The reflection of this is that nutrients (NO3 and PO4) in the system increase substantially.

Often Iron is a limiting factor in the nitrogen cycle and carbon dosing (CarboPlus) will not perform as expected in reducing PO₄³⁻ and NO3- due to a lack of Iron.

A good Iron supplementation will improve the green and yellow colours in corals.

Iron not only precipitates quickly but, is also removed by filtration and consumed quickly, it is recommended that the dose shown below is performed weekly by splitting in to as many doses as possible (ideally dosed more than once a day).

On a scale of 1-10 (1 low, 10 high) we classify the importance of Iron supplementation a 7 and suitable for all levels of reefers.

The use of our 2 part systems like Complete or pHplus will supplement Iron helping to maintain adequate supplementation over time.

It is recommended to dose Iron continuously (as needed) in as many small doses as possible. This will ensure Iron is present and available in the water (despite the quick depletion and potentially being below the ICP limit of detection).

If you maintain macro algae please multiply your daily dose by 2x. However, if yellow corals do start to appear green, reduce the dose.

Please note that for reference one drop is approximately 0.02-0.05 ml. If your recommended dose is below 1 drop per day, feel free to dose every other day (or less).

For ease of dosing and if you wish you can dose our elements via a dosing pump mixing them together in 2 solutions.

The following Reef Zlements elements can be mixed with iron – barium, chromium, cobalt, copper, manganese, nickel and zinc.

Please note that given the different products available in the market the above only applies to Reef Zlements trace elements and that we cannot guarantee the safety of the mix with other products.

To reach the desired level of 0.40 µg/l please dose 0.14 ml of Reef Zlements Iron per day for 29 days.

Manganese is present in all reefs around the world, being an extremely important element for animals and plants in our aquariums.

Being a cofactor to many enzymes it has a strong role in the metabolic processes of almost all organisms, Manganese has been known to have a positive impact around the oxidative processes in organisms and is an essential element for corals having an impact in both growth and colouration (specially red).

Manganese in the aquarium precipitates quickly making it almost non-existent thus, can only be detected if the concentration is much higher than needed.

A lack of manganese is visible in dull tissue, reduced growth (or none at all), colourless growth tips and little to no polyp extension in Goniopora and Alveopora corals as well as light sensitivity in LPS.

Manganese also plays an important role in photosynthesis making it crucial for corals, algae and phytoplankton.

On a scale of 1-10 (1 low, 10 high) we classify the importance of manganese supplementation an 8 and suitable for all levels of reefers.

If GFO is used we recommend the additional supplementation of Manganese as GFO will absorb Mn.

The use of our 2 part systems like Complete/pHplus or our NO3/PO4 reduction supplement CarboPlus will supplement Manganese helping to maintain adequate levels over time.

It is recommended to dose Manganese daily and as in as many small doses as possible. This will ensure Manganese is present and available in the water (despite precipitation and potentially being below the ICP limit of detection).

If you maintain Goniopora corals, macro algae or a high coral bio-mass please multiply your daily dose by 2x.

Please note that for reference one drop is approximately 0.02-0.05 ml. If your recommended dose is below 1 drop per day, feel free to dose every other day (or less).

For ease of dosing and if you wish you can dose our elements via a dosing pump mixing them together in 2 solutions.

The following Reef Zlements elements can be mixed with manganese – barium, chromium, cobalt, copper, iron, nickel and zinc.

Please note that given the different products available in the market the above only applies to Reef Zlements trace elements and that we cannot guarantee the safety of the mix with other products.

To reach the desired level of 2.00 µg/l please dose 0.58 ml of Reef Zlements Manganese per day for 23 days.

Selenium is a trace element present in small quantities in the seawater of reefs all around the world.

​Selenium is a very important trace element that kept in small concentrations has positive impacts on coral skeleton calcification, health and coloration along protecting the corals from oxidative compounds. To maximise its benefits Selenium should be used in conjunction with VitaPlus.

It is recommended to dose Selenium continuously (as needed) in as many small doses as possible. This will ensure Selenium is present and available in the water (despite precipitation and potentially being below the ICP limit of detection).

Please note that for reference one drop is approximately 0.02-0.05 ml. If your recommended dose is below 1 drop per day, feel free to dose every other day (or less).

On a scale of 1-10 (1 low, 10 high) we classify the importance of selenium supplementation a 5 and suitable for experienced reefers only.

For ease of dosing and if you wish you can dose our elements via a dosing pump mixing them together in 2 solutions.

The following Reef Zlements elements can be mixed with selenium – fluorine, iodine, lithium, molybdenum and vanadium.

Please note that given the different products available in the market the above only applies to Reef Zlements trace elements and that we cannot guarantee the safety of the mix with other products.

To reach the desired level of 0.20 µg/l please dose 0.17 ml of Reef Zlements Selenium per day for 12 days.

Vanadium is a metal present in reefs all around the world in different states of oxidation. It is an essential element for many marine creatures as it is an enzymatic cofactor, promoting many processes to occur in particular in the metabolism of cells.

This transition metal is extremely important in colouration, growth of coral tissue along other organisms present in the aquarium.

Vanadium is also deeply connected to nutrient export and without Vanadium this is highly impacted leading to high levels of Nitrate and Phosphate in the aquarium. In parallel it also leads dull colours without contrast our fluorescence.

​Vanadium gets depleted from the water in our tanks quickly, particularly in aquariums with a refugium as Vanadium helps algae to perform photosynthesis optimally.

On a scale of 1-10 (1 low, 10 high) we classify the importance of vanadium supplementation an 8 and suitable for all levels of reefers.

The use of our 2 part systems like Complete or pHplus will supplement Vanadium helping to ensure a constant supply over time. Dosing CarboPlus will also supply the aquarium with Vanadium.

It is recommended to dose Vanadium continuously (as needed) in as many small doses as possible. This will ensure Vanadium is present and available in the water (despite precipitation and potentially being below the ICP limit of detection).

Please note that for reference one drop is approximately 0.02-0.05 ml. If your recommended dose is below 1 drop per day, feel free to dose every other day (or less).

For ease of dosing and if you wish you can dose our elements via a dosing pump mixing them together in 2 solutions.

The following Reef Zlements elements can be mixed with vanadium – fluorine, iodine, lithium, molybdenum and selenium.

Please note that given the different products available in the market the above only applies to Reef Zlements trace elements and that we cannot guarantee the safety of the mix with other products.

To reach the desired level of 2.00 µg/l please dose 0.20 ml of Reef Zlements Vanadium per day for 34 days.