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Analysis
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5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Balling Products
Seawater supplements
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CO2 system
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
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Water treatment
Bacterial Treatments
Adverse Treatments
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5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Seawater Food
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5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Sand
Substrate for reactor
Sea Salts
Sands / Quartz / Substrates
Remineralizing
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5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
Seawater Equipment
Freshwater Equipment
Basin Equipment
5€ discount for your first order with the code: BIENVENUE05 (from 100€ purchase, offers cannot be combined)
ATI Labs - Selenium 150 ml is an ultra-pure solution designed to restore selenium balance in reef aquariums. Even in very small amounts, this trace element is crucial for the health of corals, especially those exposed to high light intensity . Indeed, selenium is involved in the production of certain protective proteins that act as natural antioxidants. When it is lacking, corals become more susceptible to oxidative stress, which can lead to general weakening. Thanks to its precise dosage and its formulation from the German ATI laboratories, this supplement allows for reliable and safe adjustment of selenium, while being compatible with ICP analyses.
Order it before
15:00 Monday
and receive it
on
Tuesday, January 27, 2026
with
Chronopost - Livraison express à domicile
Selenium is a trace mineral often overlooked in micronutrient management, but its role is crucial for corals living under high light intensity. It participates in the formation of antioxidant proteins that help coral tissue defend itself against cellular damage caused by UV rays and excess light. When selenium levels become too low, corals become more vulnerable, their light tolerance decreases, and their vitality suffers.
There are many causes of a deficiency: low concentration in sea salts , absence in certain reef supplement formulas, or even too generic trace element mixtures. ATI has designed this solution to meet this specific need , with exceptional purity and a concentration perfectly suited to aquarium use.
ATI Selenium Solution contains 7,500 µg per 150 ml bottle . Each milliliter increases the selenium concentration by 0.5 µg/l per 100 liters of water. This is also the maximum recommended daily dose, which allows for optimal stability without the risk of overdose . The product is therefore particularly suitable for aquarists following an ICP analysis protocol or looking to refine the final details of their supplementation.
| Dosage target | Recommended quantity |
|---|---|
| Increase by 0.5 µg/l per 100 L | 1 ml |
| Maximum recommended daily dosage | 1 ml / 100 L |
| Total amount of selenium per bottle | 7,500 µg |
Like all elements in the ATI ICP Elements range, selenium is manufactured in Germany, with highly purified raw materials , in compliance with the strictest European standards (CLP regulation EC n°1272/2008). Each batch is precisely controlled by the ATI laboratory, guaranteeing full traceability and complete transparency on the selenium content indicated on the label. This supplement is classified for informed users, those who master individualized supplementation with rigor and precision.
ATI Labs - Vanadium 150 ml is a highly purified solution designed to restore and maintain optimal vanadium levels in reef aquariums. Although often overlooked, this trace element plays an important role in coral coloration and sponge development . Deficiencies may go unnoticed, but their effects are very real: dull hues, slowed growth, less active sponges... Thanks to its concentrated formula from ATI laboratories in Germany, each milliliter allows for precise and controlled correction, in complete safety. Perfect for those who want to push precision even further with the support of an ICP analysis.
Cobalt is one of those trace elements that is rarely discussed, but which makes all the difference in a well-balanced reef aquarium. With ATI Labs Cobalt 150 ml , your corals will regain striking color intensity, healthy growth and increased vitality. This product offers an ultra-pure solution , perfectly dosed to compensate for invisible but critical deficiencies. Ideal for ICP analysis users, it guarantees a regular and controlled supply of cobalt, without the hassle. Produced and controlled in Germany, this supplement is designed in compliance with the strictest European standards. A must-have for any demanding reef keeper.
This supplement contains concentrated Sulfur.
10 ml of product increases the fluoride level by 4 mg/l (ppm) in 100 liters of water.
The recommended level of sulfur in aquarium water is 740 to 990 mg/l.
ATI Labs - Copper 150 ml is an ultra-pure solution designed to precisely readjust the copper content in marine aquariums. Although its presence must remain minimal, copper plays a fundamental role as an enzymatic cofactor , particularly for calcium metabolism and iron assimilation in fish. This product is particularly useful in ICP monitoring, where small deficits can be detected. Thanks to its ultra-controlled dosage and laboratory quality, it allows for safe supplementation , suitable for the most sensitive tanks. Made in Germany and complying with the strictest standards, it is aimed at demanding enthusiasts.
Accurately tests the phosphate level of your seawater.
Allows you to take around 60 measurements.
Instructions in French
Magnesium Mix salt is very pure magnesium chloride for the use of the classic Balling method or the Balling light method of Fauna Marin .
Seachem 's Reef Phytoplankton is a marine green and brown phytoplankton concentrate designed to provide fatty acids, proteins, vitamins, essential amino acids, along with organic carotenoids for invertebrate nutrition.
ReefPearls contains micro-encapsulated particles that are stable for 4 to 24 hours in the aquarium with low nutrient loss.
ATI Labs - Vanadium 150 ml is a highly purified solution designed to restore and maintain optimal vanadium levels in reef aquariums. Although often overlooked, this trace element plays an important role in coral coloration and sponge development . Deficiencies may go unnoticed, but their effects are very real: dull hues, slowed growth, less active sponges... Thanks to its concentrated formula from ATI laboratories in Germany, each milliliter allows for precise and controlled correction, in complete safety. Perfect for those who want to push precision even further with the support of an ICP analysis.
ATI Labs - Nickel is an ultra-pure solution designed to correct nickel deficiencies in reef aquariums. From ATI Laboratories in Germany, this 150 ml supplement fits perfectly into a fine-tuned and controlled approach to water chemistry. Although nickel is not strictly essential, it plays a subtle role in certain enzymatic activities of nitrifying and nitrogen-fixing bacteria . This bottle contains 45,000 µg of pure nickel, allowing for precise adjustment of values according to ICP recommendations. Perfect for advanced aquarists who want to go even further in optimizing their tank.
ATI Labs - Manganese 150 ml is an ultra-pure solution specially formulated to correct manganese deficiencies in reef aquariums. This discreet but essential micro-element is directly involved in the photosynthesis of zooxanthellae and plays a role in the intensity of colors, particularly in SPS corals . A lack of manganese can result in dull hues, slowed growth or reduced vitality. This highly concentrated supplement allows for ultra-precise dosage, suitable for demanding aquarists or those using ICP tests. It is 100% produced and controlled in Germany by ATI , for impeccable purity and traceability.
ATI Lithium 100ml from ATI , lithium helps produce brighter corals in your aquarium.
ATI Labs - Iodine 1000 ml is a highly purified supplement designed to maintain optimal iodine levels in reef aquariums. A key element for the health of corals, shrimp and fish, iodine is involved in pigmentation, immunity and even molting in crustaceans. A lack of iodine can quickly result in dull colors, fragile tissues or molting problems . This concentrated bottle allows for simple and precise adjustment, while integrating perfectly into your daily routine. Produced and controlled in Germany according to European standards, this solution guarantees a reliable and safe supply , essential for demanding aquarists.
Cobalt is one of those trace elements that is rarely discussed, but which makes all the difference in a well-balanced reef aquarium. With ATI Labs Cobalt 150 ml , your corals will regain striking color intensity, healthy growth and increased vitality. This product offers an ultra-pure solution , perfectly dosed to compensate for invisible but critical deficiencies. Ideal for ICP analysis users, it guarantees a regular and controlled supply of cobalt, without the hassle. Produced and controlled in Germany, this supplement is designed in compliance with the strictest European standards. A must-have for any demanding reef keeper.
ATI Chrome 100ml from ATI , chromium can help improve coral coloration and health.
ATI Brom 1000ml from ATI , bromine is used in certain corals for the synthesis of chromoproteins and for the construction of the skeleton .