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Quick Reference | Sea Salt | Alkalinity and pH | Ionic Compounds | Organic Compounds | Nutrient Reduction | Coral Care
Cnidarian Care and Nutrition
Fish Care and Nutrition
Engineered Sea Salt Blends
Alkalinity and pH
Ionic Compounds

Nutrient Management
Quick Reference
Engineered Sea Salt Complete Mixes (Formul8) and Pre-mixes* (Formul8x)
All Formul8 and Formul8x mixes dissolve completely within minutes to yield crystal-clear water with ionic accuracy of >99% between containers, and leave no residue in mixing vessels. Produced entirely within our private U.S. facility (as with all Captiv8 Aquaculture goods). Coral aquaculturists: for pertinent details, please read our Artificial Sea Salt Primer and general information pages on Formul8 and Formul8x. We also offer custom formulation, with a minimum order of 400 gallons, under the Captiv8 Aquaculture brand.
Parameter
-
Salinity
-
pH average
-
Alkalinity average
-
Chloride
-
Sulfate
-
Sodium
-
Magnesium
-
Calcium
-
Potassium
-
Bromide
-
Strontium
-
Boron
-
Fluoride
-
Bromide
-
Iodide
-
Molybdenum
-
Vanadium
-
Nickel
-
Zinc
-
Manganese
-
Copper
-
Selenium
-
Iron
-
Cobalt
35.2
8.35 +/-0.050
8.00 dKH
19,313.69 ppm
2,712.36 ppm
10,783.84 ppm
1,283.72 ppm
412.10 ppm
399.10 ppm
67.23 ppm
7.94 ppm
4.45 ppm
1.30 ppm
1.197x10-1 ppm
5.584x10-2 ppm
1.055x10-2 ppm
2.000x10-3 ppm
4.695x10-4 ppm
3.925x10-4 ppm
2.747x10-4 ppm
2.542x10-4 ppm
1.342x10-4 ppm
5.585x10-5 ppm
1.768x10-6 ppm
35.4
8.35 +/-0.050
8.00 dKH
19,392.43 ppm
2,712.36 ppm
10,678.70 ppm
1,347.91 ppm
432.70 ppm
419.06 ppm
67.23 ppm
8.34 ppm
4.45 ppm
1.30 ppm
1.197x10-1 ppm
5.584x10-2 ppm
1.055x10-2 ppm
2.000x10-3 ppm
4.695x10-4 ppm
3.925x10-4 ppm
2.747x10-4 ppm
2.542x10-4 ppm
1.342x10-4 ppm
5.585x10-5 ppm
1.768x10-6 ppm
40.1
8.35 +/-0.050
9.11 dKH
21,934.01 ppm
3,080.35 ppm
12,246.91 ppm
1,457.89 ppm
467.99 ppm
453.25 ppm
76.35 ppm
9.02 ppm
5.05 ppm
1.47 ppm
1.357x10-1 ppm
6.332x10-2 ppm
1.196x10-2 ppm
2.267x10-3 ppm
5.443x10-4 ppm
5.669x10-4 ppm
3.402x10-4 ppm
1.134x10-4 ppm
1.521x10-4 ppm
6.236x10-5 ppm
3.402x10-6 ppm
*Pre-mixes (Formul8x series) yield same ionic values as shown when properly mixed with NaCl of at least 99.5% purity. To this end, we recommend Morton Purex (not TFC Purex, which contains Sodium ferrocyanide), or an equivalent product.
Ionic Compounds
Target Ion(s)
Formula
Phase
ppm; μg/L per 1 mL / 100 L
Boron
Bromide
Calcium
Cobalt
Copper
Fluoride
Iodide
Iron
Magnesium
Manganese
Molybdenum
Nickel
Potassium
Rubidium
Selenium
Silicon
Strontium
Vanadium
Zinc
Minor and Trace
Nitrate
Phosphate
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Dry (Powder)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Dry (Crystalline)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
Solution (Liquid)
44,500 ppm; 445 μg/L
100,000 ppm; 1,000 μg/L
150,250 ppm; 1,503 μg/L
146,600 ppm; 1,466 μg/L
1,000 ppm; 10 μg/L
60,560 ppm; 605.6 μg/L
10,000 ppm; 100 μg/L
100,000 ppm; 1,000 μg/L
10,000 ppm; 100 μg/L
100,000 ppm; 1,000 μg/L
1,000 ppm; 10 μg/L
10,000 ppm; 100 μg/L
1,000 ppm; 10 μg/L
100,000 ppm; 1,000 μg/L
10,000 ppm; 100 μg/L
250 ppm; 2.50 μg/L
10,000 ppm; 100 μg/L
100,000 ppm; 1,000 μg/L
1,000 ppm; 10 μg/L
1,000 ppm; 10 μg/L
Varies by ion
100,000 ppm; 1,000 μg/L
50,000 ppm; 500 μg/L
Alkalinity and pH
Formula
Phase
Max pH
ppm Carbonate Total
Solution (Liquid)
Solution (Liquid)
Dry (Crystalline)
Solution (Liquid)
8.35 +/-0.50
9.20 +/-0.50
8.35 +/-0.50
8.40 +/-0.50
160,000 ppm
160,000 ppm
~62.75% by mass
160,000 ppm
Organic Compounds: Nutrition, Cellular (tissue) Generation, and Color Intensification
Formula
Phase
Impact
Dry (Free-flowing Powder)
Dry (Free-flowing Powder)
Dry (Free-flowing Powder)
Dry (Particulate)
Dry (Particulate)
Emulsion (Liquid)
Concentrate (Liquid)
Improves rate of cnidarian cellular generation
Improves cnidarian color intensity
Low-PO4, high-response blend for suspension-feeders
Low-PO4, high-response blend for planktivores, actinarians, and medium- to large-polyp scleractinians
Low-PO4, high-response picoplankton blend for cnidarians, bivalves, poriferans, and ascidians
Tissue generation, improved robustness, intensified coloration, enhanced feeding response for fishes
Improved robustness, enhanced feeding response for fishes
Nutrient Uptake and Cohort Biomass Conversion
Formula
Phase
Impact
Dry (Free-flowing Powder)
Dry (Free-flowing Powder)
Suspension (Liquid)
Rapid conversion of latent POM to cohort biomass; outcompetes cyanobacteria for available nutrients; improves Redfield ratio and water clarity; increases ORP; provides bacterioplankton for cnidarian capture
Establishes beneficial microbial consortium; enhances N and P uptake when dosed with aCtiv8
Rapid reduction of dissolved inorganic nitrogen; reduces system content of NH3, NO2, and NO3; able to reduce system NH3 by ~50% within 24 hours of application
Scleractinian Care
Formula
Phase
Impact
Dry (Free-flowing Powder)
Improves outcomes when coralivorous invertebrates are evident in culture systems