Substrate by tank size
How much substrate for a 45 x 30 cm nano tank?
A starting estimate for a 45 x 30 cm nano tank at 4 cm substrate depth.
Estimated result
Pre-calculated from the example inputs below. Adjust them in the calculator for your own numbers.
- Substrate volume
- 5.4 litres
- Estimated weight
- 8.3 kg (18.3 lb)
- Bag count
- 1 x 9 kg bags
A 45 x 30 cm nano tank with 4 cm of substrate needs the small volume and bag count shown below. Nano tanks usually need only one bag, but planted nano layouts can use a deeper bed at the back.
Example inputs used
- Tank length: 45
- Tank width: 30
- Desired substrate depth: 4
- Substrate density: 1.4
- Bag size: 9
These are starting values for this example. Measure or confirm your own figures, then open them in the aquarium substrate calculator.
Assumptions and limits
- Uses a typical substrate density of 1.4 kg/L.
- Includes a 10% setup allowance and rounds bags up.
- Planted nano layouts may slope deeper toward the back.
Substrate depth depends on livestock, plants, and tank design. Check species-specific requirements.