Aquarium Substrate Calculator – Aquasoil & Sand Guide | The Wet Leaf Canada
🌿 Aquarium Substrate Calculator
Calculate the substrate required for flat or sloped aquascapes.
Choose the right substrate
Choosing the right substrate is one of the most important steps when setting up a planted aquarium. Substrate anchors aquatic plants, stores nutrients, and supports beneficial bacteria that help maintain a healthy ecosystem.
Our Wet Leaf Aquarium Substrate Calculator helps you determine how much aquasoil, sand, or gravel you need for your aquarium based on tank size and substrate depth. This tool is especially useful for aquascaping layouts where the substrate slopes from front to back.
What Is Aquarium Substrate?
Aquarium substrate is the material placed at the bottom of an aquarium. It serves several important functions:
- Anchors aquatic plants
- Supports beneficial bacteria for biological filtration
- Stores nutrients for plant roots
- Creates natural aquascaping landscapes
Substrate choices vary depending on the type of aquarium you are building, but for planted aquariums the most common choices are aquasoil and sand.
Aquasoil vs Sand for Planted Aquariums
| Substrate | Best Use | Nutrients | Plant Growth |
|---|---|---|---|
| Aquasoil | Planted aquariums | High | Excellent |
| Sand | Foreground / fish tanks | None | Limited |
| Gravel | General aquariums | None | Moderate |
Aquasoil
Aquasoil is specifically designed for planted aquariums. It contains nutrients that support plant growth and often buffers water parameters slightly.
- Rich in nutrients for plant roots
- Promotes strong plant growth
- Ideal for carpeting plants and stem plants
- Commonly used in aquascaping layouts
Aquarium Sand
Sand is an inert substrate that does not contain nutrients. It is commonly used for aesthetic purposes or for fish species that prefer softer substrates.
- Natural appearance
- Safe for bottom-dwelling fish
- Ideal for aquascaping pathways
Many aquascapers combine aquasoil in planted areas with sand in the foreground to create contrast and natural aquascaping layouts.
Recommended Substrate Depth
The depth of your aquarium substrate affects plant growth and aquascaping appearance.
- Front of tank: 3–5 cm
- Back of tank: 6–10 cm
Creating a slope from front to back helps produce depth and perspective in aquascaping layouts.
Aquascaping Substrate Layout Tips
Create a substrate slope
A shallow front and deeper back gives the illusion of depth and makes the aquascape appear larger.
Use rocks to hold height
Large stones can hold substrate in place when creating terraces or hills.
Use sand pathways
Sand can be used in aquascapes to create natural looking paths between planted areas.
Hide structural materials
Some aquascapers place lava rock under aquasoil to build height while reducing the amount of aquasoil required.
Best Substrate for Aquarium Plants
Aquatic plants grow best when their roots can access nutrients.
Heavy root-feeding plants prefer nutrient-rich substrates such as aquasoil.
- Amazon swords
- Cryptocoryne
- Carpeting plants
- Stem plants
Substrate for Common Aquarium Tank Sizes
The table below provides typical aquasoil and sand estimates for common aquarium sizes used in aquascaping.
| Aquarium Size | Typical Dimensions | Aquasoil Needed | Sand Needed |
|---|---|---|---|
| 45 cm tank | 45 × 27 × 30 cm | 4–6 L | 3–5 L |
| 60 cm tank | 60 × 30 × 36 cm | 6–10 L | 5–8 L |
| 75 cm tank | 75 × 35 × 40 cm | 10–15 L | 8–12 L |
| 90 cm tank | 90 × 45 × 45 cm | 15–25 L | 12–20 L |
| 120 cm tank | 120 × 45 × 45 cm | 25–40 L | 20–30 L |
These are general estimates for aquascaped aquariums with a sloped substrate. For exact calculations, use the Wet Leaf Aquarium Substrate Calculator above.
Aquarium Substrate in Canada
Finding high-quality aquarium substrate in Canada can sometimes be difficult. At The Wet Leaf, we focus on providing aquascaping supplies designed specifically for planted aquariums.
- Aquasoil for planted aquariums
- Aquarium sand for aquascaping
- Aquarium plants in Canada
- Driftwood and aquascaping stone
Frequently Asked Questions
How deep should aquarium substrate be?
Most planted aquariums use 5–10 cm of substrate to support plant roots and provide nutrients.
Is aquasoil better than sand?
Aquasoil is generally better for planted aquariums because it contains nutrients that support plant growth. Sand is typically used for aesthetics or fish species that prefer soft substrates.
Can plants grow in sand?
Yes, some aquatic plants can grow in sand, but plant growth is usually better when nutrient-rich substrates like aquasoil are used.
How long does aquasoil last?
Most aquasoils can last many years but fertilization such as water collum fertilizers and root tabs may be required.
How much aquasoil do I need?
The amount depends on tank size and substrate depth. Use the Wet Leaf Aquarium Substrate Calculator above to determine the exact amount.
Can aquasoil and sand be used together?
Yes. Many aquascapes combine aquasoil in planted areas with sand in the foreground to create contrast and natural pathways.
The Wet Leaf – Aquascaping and Aquarium Plants Canada
The Wet Leaf specializes in aquarium plants in Canada, aquasoil, aquarium substrate, and aquascaping supplies for planted aquariums. Use the our Substrate Calculator above to plan your next aquascape and determine how much substrate you need.
Happy Scaping!