Biofloc FVI and Imhoff-cone calculator.
Convert settled solids in an Imhoff-cone sample to floc volume index in mL/L.
Biofloc floc volume index inputs
Planning tool only. Monitor water quality and animal behaviour, validate species-specific limits and follow the direction of a qualified aquaculture professional before changing stocking, feed, aeration or water chemistry.
Method: FVI equals the settled solids reading in millilitres divided by the sample volume in litres.
Inputs used: Settled solids after 15–20 minutes = 12 mL; Imhoff-cone sample volume = 1 L
Assumptions: The result uses the values, units and options shown in the input snapshot.
Scope and warnings: Planning tool only. Monitor water quality and animal behaviour, validate species-specific limits and follow the direction of a qualified aquaculture professional before changing stocking, feed, aeration or water chemistry. Rounding and excluded real-world terms can make an external result differ.
How this biofloc fvi and imhoff-cone calculator works
FVI equals the settled solids reading in millilitres divided by the sample volume in litres.
A worked example
A 12 mL settled reading from a 1 L sample is 12 mL/L.
Does the band diagnose water quality?
No. Settled solids are one observation. Interpret them with oxygen, ammonia, nitrite, alkalinity, species and system behaviour.
Calculations run on your device. Review your results before exporting or sharing them.
Take a consistent settled-solids sample
Record the settling time, sample volume and reading consistently. Dividing settled millilitres by sample litres produces a comparable mL/L observation.
FVI does not measure dissolved oxygen, TAN, nitrite or disease risk. Use it alongside a written water-quality log and farm-specific response plan.
Published by ToolMitra — methods and editorial approach.