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Water Volume Formula:
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Water volume calculation determines the amount of water a fish tank can hold, accounting for internal dimensions and substrate displacement. Accurate volume measurement is essential for proper stocking, filtration, and water treatment.
The calculator uses the water volume formula:
Where:
Explanation: The calculator provides both total volume and net water capacity, which accounts for substrate, decorations, and other displacements (typically 10-15% reduction).
Details: Knowing the exact water volume is crucial for proper medication dosing, water conditioner application, stocking levels, and filter sizing. Overestimating can lead to underdosing treatments, while underestimating can cause overdosing.
Tips: Measure internal dimensions (excluding glass thickness). For irregular shapes, use average measurements. Always use net water capacity for medication and stocking calculations.
Q1: Why calculate net water capacity?
A: Substrate, decorations, and equipment displace water, reducing the actual water volume available for fish and affecting treatment dosages.
Q2: How much does substrate displace?
A: Typically 10-15% of total volume, depending on substrate depth and type. Gravel displaces more than sand.
Q3: Should I measure internal or external dimensions?
A: Always measure internal dimensions for accurate water volume calculation. External measurements include glass thickness.
Q4: Can I use this for cylindrical tanks?
A: No, this calculator is for rectangular tanks. Cylindrical tanks use π × radius² × height formula.
Q5: Why are there different conversion factors?
A: 0.00433 converts cubic inches to US gallons, while 0.001 converts cubic centimeters to liters.