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hobby.aquarium-stocking Calculator
Estimates bioload and stocking level for a freshwater aquarium from fish size and count relative to tank volume, using the standard inch-per-gallon guideline corrected for fish body depth. Overstocking is the primary cause of ammonia spikes and fish death in home aquariums.
Inputs
Tank Volume L
Three-dimensional space occupied (m³ or L). 1 m³ = 1,000 L.
Fish Count
Count of items or occurrences.
Avg Fish Cm
Linear measurement. Ensure consistent units: 1 m = 1,000 mm = 3.281 ft.
Filtration Multiplier
Reference formula or conversion factor shown for context.
Results
stocking load
Sample size or count used in the calculation.
total fish length (cm)
The computed linear length.
volume per cm of fish
The computed three-dimensional volume.
tank status
Current state of the system, process, or metric — typically pass/fail, healthy/warning/critical, or a descriptive classification.
1 inch per gallon rule
Sample size or count used in the calculation.
filtration quality
A qualitative assessment of how the result compares to the desired standard or benchmark.