Advanced formula for perfect stability in SPS trays
Designed for hard coral enthusiasts, ATI Essentials SPS offers a complete solution to the specific needs of SPS aquariums. It contains all the major elements (calcium, magnesium, KH, potassium, strontium, etc.) as well as a range of trace elements (iron, iodine, zinc, cobalt, etc.) essential for the growth of the calcareous skeleton and vibrant coloration . All without the risk of excess or ionic drift.
The big plus of this version? Its 100% mineral #1 KH Complex , which maintains a stable and higher pH – a key parameter for the proper development of SPS. The #2 Calcium Complex , meanwhile, is enriched with 74,000 mg/L of calcium, and covers all the trace elements necessary for the proper metabolism of corals.
Simple and precise dosage: ideal for dosing pumps
ATI has designed this system to be easy to integrate into your routine . Both solutions are dosed in the same proportions, between 5 and 10 ml per 100 liters of water depending on the measured consumption. It is therefore perfectly compatible with a dosing pump and does not require any prior dilution .
Here is a dosage guide based on your daily consumption:
| Daily KH consumption (°dKH) | Dosage #1 KH Complex |
|---|---|
| 0.1 | 1 ml / 100 L |
| 0.5 | 5 ml / 100 L |
| 1 | 10 ml / 100 L |
| Daily calcium intake (mg/L) | Dosage #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 |
A ready-to-use formula, even in winter
Because the concentration is high, crystals may form in solution #1 at low temperatures. If this happens, a 45°C water bath or a radiator is sufficient to remove them. Below 20°C, a 1:1 dilution with reverse osmosis water is recommended – for both solutions – while maintaining an equal dosage.
Comparison: ATI Essentials Mixed Reef vs ATI Essentials SPS
| Features | ATI Essentials Mixed Reef | ATI Essentials SPS |
|---|---|---|
| Aquarium type | Mixed reef | Reef dominated by SPS |
| Experience level | Beginner to expert | Beginner to expert |
| Fish population density | Medium to high | Low to medium |
| Contribution of major elements | ✓ | ✓ |
| Trace element intake | ✓ | ✓ |
| Contents of #1 KH Complex |
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| Contents of #2 Calcium Complex |
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| Reduction of nitrates and phosphates | ✓ | ✗ |
| Effect on pH | Medium to strong | Strong to very strong |
| Balanced consumption of solutions #1 and #2 | ✓ | ✓ |
| Ionic balance / No drift | ✓ | ✓ |
| Concentration vs Classic Balling | ~ 5 times more concentrated | ~3.6 times more concentrated |
| Ready to use for dosing pump | ✓ | ✓ |
| Adjustable to the consumption of the tray | ✓ | ✓ |
| Recommended daily dosage | 3 to 7 ml / 100 L per solution | 5 to 10 ml / 100 L per solution |
Product Details
ATI-SPSSet
Reviews about this product
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Pascal Z.
Published Apr 04, 2026 at 01:39 pm (Order date: Mar 29, 2026)- (Translated review)
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Jean-michel a.
Published Mar 29, 2026 at 07:30 am (Order date: Mar 20, 2026)Perfect (Translated review)
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Jean claude D.
Published Mar 25, 2026 at 02:32 pm (Order date: Mar 19, 2026)- (Translated review)
ATI - Essentials SPS - 2 x 2.7 L - Marine Aquarium Supplements