10 gallon tank: dimensions & setup math
20 × 10 × 12 inches (L × W × H). Rounded planning dimensions; measure your tank.
10 nominal gal · about 122.81 lb with water, estimated glass and 2-inch gravel.
Estimated working water uses 85% of nominal: 8.5 US gal. The volume tool instead applies 85% to geometric volume. Neither is a measured fill.
Eight answers for this tank
- Tank volume
10.39 US gallons · 39.33 litres
- Gravel & substrate
23.15 lb gravel for a 2-inch bed
- Heater wattage
30–50 W planning range
- Filter flow
40–60 GPH for a community
- Stocking guide
200 in² surface · 20-inch swimming length
- Water changes
2.12 US gal for a 25% water change
- Dechlorinator dose
1 mL Prime for 10 US gal of new water
- Filled weight
About 122.81 lb filled (without stand)
Plan around this footprint
This 10 gallon plan uses 20 × 10 × 12 inches and 200 in² of floor. Compared with the 5.5 gallon (128 in²), its footprint is 56.25% larger. Small setup: leave an open swimming lane and add livestock in stages after the filter is cycled.
Dimensions and limits
Aqueon size chart. Listed dimensions are representative, not exact catalog measurements. Names identify marketed sizes; geometry explains why the calculated gallons can differ. Weight excludes the stand, rocks and equipment.