// SECTION 02 — INSTRUMENT
Water Volume Calculator
Tank volume in liters and US gallons from length × width × height, with safe-fill.
// TOTAL VOLUME
72.0 L · 19.0 gal
- // Fill to 90% (safe)
- 64.8 L · 17.1 gal
- // Headspace at 90%
- 7.2 L
Internal dimensions only. Subtract media displacement (clay pebbles take ~30% volume) from the working capacity before sizing pumps.