If you wish for the mineral content of your TAP water to be accounted for in your fertilizer calculations you can provide your water utility's water report below.
Alkalinity (KH)
Carbonate Hardness
mg/L CaCO₃
Calcium (Ca)
mg/L
Nitrate (NO₃)
mg/L
Chloride (Cl)
mg/L
Phosphate (PO₄)
mg/L
Nickel (Ni)
mg/L
Potassium (K)
mg/L
Sulfate (SO₄)
mg/L
Magnesium (Mg)
mg/L
Sodium (Na)
mg/L
Note: If Tap water change volume is not provided in Tank & Dosing, values in the Area Water Report will be ignored.
2
Ammonia & Urea
Ammonia and Urea can be used as a Nitrogen source. They can also be potentially unsafe for aquatic life if dosed inappropriately.
Note: This calculator assumes all 'N' gets converted by the bacteria in your tank to NO3 ions.
3
Hydrates & Compound Forms
Choose the compound form used in your fertilizer products.
Magnesium Sulfate
MgSO₄
Calcium Chloride
CaCl₂
Calcium Sulfate
CaSO₄
Potassium Phosphate
Compound form
4
Compound Solubility
Set the overall compound solubility level.
Solubility Level
Note: Solubility of Fe chelates will vary with water pH. Values used in this calculator are based on Solufeed products. Variations may exist with other brands.
5
Scale
Set the overall level of accuracy of your scale. Used to provide guidance in Trace Calculator. Does not interfere with actual calculations.
Scale Readability
Confidence Level
6
Fertilizers & Compound Costs
You can edit compound and commercial fertilizer costs to estimate and compare fertilizer costs. These values are for reference only and do not affect calculator results. Default prices are actual GBP prices from September 2020. Select the currency that matches the values you provide.