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The ATI Essentials SPS – Set 2x10L was designed for SPS-dominated marine aquariums, where stability is paramount. This ultra-concentrated liquid system provides essential elements (KH, calcium, magnesium, potassium, strontium, etc.) and a carefully measured base of trace elements daily, without drift or unnecessary accumulation. Its key advantage: a 100% inorganic KH component that helps maintain a higher and more stable pH , exactly what the most demanding SPS corals require. Ready to use, compatible with dosing pumps, and calibrated to dispense both solutions in equal quantities , this 2x10L set simplifies routines while keeping the water clean, balanced, and perfectly consistent.
Order it before
15:00 Monday
and receive it
on
Tuesday, January 27, 2026
with
Chronopost - Livraison express à domicile
The rangeATI® EssentialsIt was designed as a complete supplementation system, capable of adapting to the type of tank (mixed reef or SPS-dominated tank) and the level of experience, from beginner to demanding enthusiast. The foundation rests onEssentials Mixed ReefAndEssentials SPS, two highly concentrated liquid solutions designed to supportgrowth,metabolismAndcoloringCorals in a saltwater aquarium. To go further, the range then allows for finer adjustments withEssential Daily Traces A & B,Essential NitroAndEssential Phospho, in order to precisely adjust to the needs of the tank. The whole process is based on experience gained from tens of thousands of ICP analyses, with formulationscontinuously optimizedOver the years.

In a tank dominated by SPS corals, they consume quickly and they hate roller-coaster cycles. ATI Essentials SPS It therefore aims for regularity: it provides complete supplementation to support growth, , metabolism And coloring, while maintaining water close to a natural balance. Thanks to the accumulated experience of numerous ICP analyses, the formulation is designed to provide a solid base of major and trace elements, with a simple logic: to nourish the reef, without overloading it.
The set includes two solutions to be used together, and that's precisely where it gets clever: the concentrations have been adjusted so that #1 and #2 should be dosed in equal (or very close) quantities.. In practice, the routine becomes crystal clear: a single baseline setting, then fine-tuning based on the tank's actual consumption. The result: a more stable reef, calmer SPS corals, and less time spent juggling numbers.
|
#1 KH Complex – Contents & Highlights
|
#2 Calcium Complex – content & strengths
|
This system ensures the coverage of major elements essential to the coral skeleton (calcium, magnesium, strontium, alkalinity…), while also providing a trace element base (iodine, iron, zinc, manganese, etc.) designed to avoid the "it accumulates and eventually spirals out of control" effect. This is precisely what we're looking for in SPS: supplementation. predictable, with clean water and parameters that stay where we want them.
The recommended dosage is intentionally kept simple: 5 to 10 ml per 100 L per day, The solution is used as a starting point. Then, adjustments are made based on the tank's daily consumption: KH and calcium levels are measured, and the adjustments are fine-tuned to precisely compensate for what is consumed. Here are some practical guidelines, useful for starting with a solid foundation.
|
Daily consumption of KH in °dKH |
Daily dosage Essentials SPS #1 KH Complex |
|
0.1 |
1 ml / 100 L |
|
0.5 |
5 ml / 100 L |
|
1 |
10 ml / 100 L |
|
Daily calcium intake in mg/L |
Daily dosage Essentials SPS #2 Calcium Complex |
|
1 |
1.4 ml / 100 L |
|
2.5 |
3.5 ml / 100 L |
|
5 |
7 ml / 100 L |
|
10 |
14 ml / 100 L |
No powders, no mixtures, no containers to prepare: everything is ready. The concentration is designed to offer good yield, and use with a dosing pump is straightforward. The tank receives the same amount every day, at the same rate, and it shows: the SPS corals appreciate consistency, and so does the aquarist.
Because the solution is concentrated, the #1 KH Complex It can crystallize when it's cold. This is simply a physical effect: the crystals disappear when the container is warmed (warm water bath around the container). 45°C or radiator). If used below 20°C, A 1:1 dilution with reverse osmosis water can be considered, also diluting #2 in the same way to maintain identical dosage volumes.
The choice between Mixed Reef and SPS depends mainly on the objective of the tank: mixed reefs benefit from a formula more oriented towards "versatility" and nutrient management, while the SPS version aims for stability and pH maintenance particularly appreciated by the most demanding hard corals.
|
ATI Essentials Mixed Reef |
ATI Essentials SPS |
|
|
Recommended aquarium type |
Mixed Reef |
SPS-dominated tank |
|
Fish population |
Medium to high |
Low to medium |
|
KH component |
Mixed sources (organic + inorganic) |
100% inorganic |
|
Effect on nitrates/phosphates |
Yes (favorable trend) |
No |
|
pH: maintain at a high level |
Medium to high |
Strong to very strong |
|
Suggested daily dosage |
3–7 ml / 100 L (per solution) |
5–10 ml / 100 L (per solution) |
|
Ready to use / dosing pump |
Yes |
Yes |
|
Concentration vs. Classical Balling |
Approximately 5x more concentrated |
Approximately 3.6x more concentrated |
To keep a reef functioning well, everything revolves around three needs: the major elements (skeleton construction), trace elements (vitality and color) and nutrient management (overall balance, polyp extension). The idea with ATI, The aim is to offer a robust base via Essentials, and then to be able to refine as needed with targeted additions, when the tank becomes more demanding or when the aquarist wants to push the settings further.
|
Pillar |
1. Key Elements (calcium, KH, magnesium, strontium, etc.) |
2. Trace elements (iodine, iron, molybdenum, zinc…) |
3. Nutrients (nitrogen, phosphorus, organic matter…) |
|
Role |
Skeleton construction |
Biomass and coloring |
Biomass, staining, polyp extension |
|
Products ATI useful |
ATI Essentials SPS (or Mixed Reef depending on the tank) |
Base : ATI Essentials SPS Refining: Daily Traces A & B Adjustments: ATI ICP Elements |
Essential Nitro And Essential Phospho |
This SALIFERT brand analysis kit allows you to accurately measure the calcium level of your seawater. Allows you to take 50 to 100 measurements.
This analysis kit from the SALIFERT brand allows you to measure the Kh of your seawater with precision. Allows you to take 100 to 200 measurements.
Reagents for seawater calcium (HI 758), 25 tests.
High quality activated carbon specially developed for marine aquariums.
You will clearly notice the difference on your corals.
Standard solution of 35 ppt for the calibration of salinity testers type HI98319 .
Ref: HI70024P
ATI Nutrition Products are ideal in addition to Essentials Pro products, they contain organic compounds and nutrients essential for the balance of the marine aquarium and corals
Accurately tests the nitrate level of your seawater.
Allows you to take around 60 measurements.
Instructions in French
Formula One Small is a basic food in the form of soft and moist granules of around 1.2mm and for all types of marine fish. These granules are enriched with garlic and spirulina.
The third element of the Balling method, this "salt-free salt" is a mixture of all the mineral salts present in natural seawater , except sodium chloride NaCl. It allows the maintenance of the ionic balance in the application of the Balling method.
1kg of powder allows the preparation of 41 liters of solution. That's 0€41 per litre!
High purity chemical products compliant with the European Pharmacopoeia prepared and packaged on site in our warehouse.
Products are now packaged in resealable pouches for less breakage during transport. They are also more ecological with 80% less plastic compared to our old packaging.
The third element of the Balling method, this "salt-free salt" is a mixture of all the mineral salts present in natural seawater , except sodium chloride NaCl. It allows the maintenance of the ionic balance in the application of the Balling method.
3kg of powder allows the preparation of 125 liters of solution. Or 0€31 per litre!
High purity chemical products compliant with the European Pharmacopoeia prepared and packaged on site in our warehouse.
Products are now packaged in resealable pouches for less breakage during transport. They are also more ecological with 80% less plastic compared to our old packaging.
The third element of the Balling method, this “salt-free salt” is a mixture of all the mineral salts present in natural seawater except sodium chloride NaCl. It allows the maintenance of the ionic balance in the application of the Balling method.
High purity chemicals compliant with the European Pharmacopoeia.
The third element of the Balling method, this “salt-free salt” is a mixture of all the mineral salts present in natural seawater except sodium chloride NaCl. It allows the maintenance of the ionic balance in the application of the Balling method.
High purity chemicals compliant with the European Pharmacopoeia.
Second element of the Balling method, sodium hydrogen carbonate allows the maintenance of the carbon hardness (Kh) of seawater in the application of the Balling method.
1kg of powder allows the preparation of 12 liters of solution. That's 0€41 per litre!
High purity chemical products compliant with the European Pharmacopoeia prepared and packaged on site in our warehouse.
Products are now packaged in resealable pouches for less breakage during transport. They are also more ecological with 80% less plastic compared to our old packaging.
Second element of the Balling method, sodium hydrogen carbonate allows the maintenance of the carbon hardness (Kh) of seawater in the application of the Balling method.
3kg of powder allows the preparation of 36 liters of solution. That's 0€33 per litre!
High purity chemical products compliant with the European Pharmacopoeia prepared and packaged on site in our warehouse.
Products are now packaged in resealable pouches for less breakage during transport. They are also more ecological with 80% less plastic compared to our old packaging.
Second element of the Balling method, sodium hydrogen carbonate allows the maintenance of the carbon hardness (Kh) of seawater in the application of the Balling method.
High purity chemicals compliant with the European Pharmacopoeia.
Second element of the Balling method, sodium hydrogen carbonate allows the maintenance of the carbon hardness (Kh) of seawater in the application of the Balling method.
High purity chemicals compliant with the European Pharmacopoeia.
What they think about it
(and they are right...)
Nicolas K.
Very good product. Stable (Translated review)
Julien L.
Very good product if the dosage is respected, just monitor the salinity (Translated review)
Simone M.
Everything perfect (Translated review)
Mario l.
Good quality, I have been using these products for a few years, very happy (Translated review)
Thierry F.
Very interesting and efficient products for a simple but complete balling . (Translated review)
Matthieu E.
Great product (Translated review)
Jean-Marc B.
Excellent product used for 3 years in a 1,000l SPS tank. No other supplements added. Very colorful corals. (Translated review)