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Stock Density Formula:
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Fish stock density measures how many fish can be safely kept in an aquarium based on their total length and tank volume. It helps prevent overcrowding and maintains healthy water conditions for your aquatic pets.
The calculator uses the stock density formula:
Where:
Explanation: This formula helps determine appropriate stocking levels using the common "1cm of fish per litre" guideline, converted to a per-100-litre basis for easier interpretation.
Details: Proper stock density is crucial for maintaining water quality, reducing stress in fish, preventing disease outbreaks, and ensuring adequate oxygen levels in the aquarium.
Tips: Enter the total length of all fish in centimeters and your tank volume in litres. The calculator will provide stock density and the cm/L ratio based on the 1cm per litre rule.
Q1: What is the 1cm per litre rule?
A: A general guideline suggesting 1 centimeter of fish length per litre of water. This is a starting point that should be adjusted based on fish species, filtration, and maintenance.
Q2: Is this rule suitable for all fish types?
A: No, some fish produce more waste or require more space. Large-bodied fish, messy eaters, or territorial species may need lower stocking densities.
Q3: How do I measure total fish length?
A: Measure each fish from nose to tail and sum all lengths. Use adult sizes for planning, not current juvenile sizes.
Q4: What factors affect stocking capacity?
A: Filtration efficiency, water change frequency, fish species compatibility, plant density, and aquarium dimensions all impact safe stocking levels.
Q5: When should I reduce stocking density?
A: Reduce density if you notice poor water quality, stressed fish, frequent disease, or aggressive behavior among tank inhabitants.