Reef Chemistry Calculators

[Randy Holmes-Farley]

Reef chemicals calculator
Reef Chemistry Calculator

Calcium Reactor setup calculator (CaCO3/CO2 reactors)
Calcium Reactor Setup Help

Aquarium System Volume Calculator
Aquarium System Volume Calculator

Alkalinity Unit Conversion Calculator
SaltyZoo's Alkalinity Reading Conversion (meq/l / dKH / ppm CaCO3) Utility

Salinity/specific gravity Conversion Calculator
SaltyZoo's Salinity Conversion (Specific Gravity / PPT)

 

[Randy Holmes-Farley]

Here's an inorganic nutrient dosing calculator. It doesn't have everything we want (e.g., no sodium nitrate), but a good number of things we might dose:

http://rotalabutterfly.com/nutrient-calculator.php