AQUARIUM LAYOUT PLANNER

Tank volume & substrate

Gross litres = length × depth × height ÷ 1,000 for measurements in centimetres. Substrate litres = length × depth × (front depth + back depth) ÷ 2,000. This assumes a linear slope across the whole tank footprint.

How it works

Estimated water litres = length × depth × water level ÷ 1,000 − substrate litres. Water level is measured from the tank bottom. A US gallon equals 3.785411784 litres. Decoration displacement, glass thickness, equipment and air pockets are not modelled. Substrate volume is a geometric estimate, not a purchasing weight.

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