ATI® Absolute Ocean | Concentrated Saltwater
Absolute Ocean: Set of 2 x 2.7 L (0.71 gal) For 45 liters (12 gal) of salt water
$21.95
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ATI® Absolute Ocean | Concentrated Saltwater
$21.95
The Revolutionary 8.3x Seawater Concentrate
ATI® Absolute Ocean is a revolutionary liquid seawater concentrate designed for maximum precision, purity, and ease of use. This 8.3x concentrated solution is the perfect alternative to traditional synthetic salt mixes, especially for nano-reefs or systems where storage and mixing speed are priorities. Simply combine with RODI water for immediate, laboratory-grade saltwater that is virtually identical to natural seawater.
The Absolute Ocean Advantage
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True Natural Chemistry: High-precision ICP laboratory measurements ensure that all major and trace elements are perfectly adjusted. Even trace elements in the parts-per-billion (ppb) range, such as vanadium, are tuned to near-natural levels.
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Maximum Purity: Formulated using only pharmaceutically and analytically pure salts, ensuring a final solution free from the impurities often found in mined salt products.
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Perfect Homogeneity: Because it is a liquid, Absolute Ocean eliminates the "layering" or separation of elements that can occur in dry salt buckets. Every drop is identical to the last.
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Ready for Immediate Use: There is no "mixing time" required. Once diluted with RODI water, the solution is immediately clear and ready to be added to your aquarium.
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ICP Quality Control: Every batch is continuously monitored by the ATI® Lab. Users can access the specific analysis of their batch via the QR code on the packaging.
Seawater Composition (at 35 PSU)
| Parameter | Natural Seawater | ATI® Absolute Ocean |
| Alkalinity | 7 °dKH | 7.5 °dKH ± 0.2 |
| Calcium | 421 mg/l | 421 mg/l ± 1.5% |
| Magnesium | 1,313 mg/l | 1,313 mg/l ± 1.5% |
| Potassium | 408 mg/l | 408 mg/l ± 1.5% |
| Strontium | 8.1 mg/l | 8.1 mg/l ± 2% |
| Iodine | 64 μg/l | 70 μg/l ± 4 μg/l |
| Nitrate | < 1 mg/l | < 0.1 mg/l |
Mixing Instructions
For best results, use RODI water with a conductivity of less than 5 µS/cm at room temperature.
Mixing Table (Standard 35 PSU)
| Desired Saltwater | RODI Water | Absolute Ocean #1 | Absolute Ocean #2 |
| 1 Liter | 880 ml | 60 ml | 60 ml |
| 10 Liters | 8.8 L | 600 ml | 600 ml |
| 1 Gallon | 113 fl oz (0.88 gal) | 8 fl oz (1 cup) | 8 fl oz (1 cup) |
| 5 Gallons | 4.4 gal | 40 fl oz | 40 fl oz |
Application: Pour the required RODI water into a clean container, add Absolute Ocean #1 and #2, and use immediately once clear.
Storage & Available Sizes
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Shelf Life: Absolute Ocean has an unlimited shelf life when stored properly.
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Temperature: Store above 10°C (50°F). If crystals form in solution #1 due to cold, gently heat to 45°C (115°F) in a water bath until dissolved.
Available Sizes:
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2 x 2.7 L Set: Produces 45 Liters (12 gal) of saltwater.
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2 x 10.2 L Set: Produces 170 Liters (45 gal) of saltwater.
