Fluval Stratum - Infused with Beneficial Nitrifying Bacteria
- Kick-starts the nitrogen cycle
- Ideal for fine & delicate root systems
- Helps support neutral to slightly acidic pH
Collected from the foothills of Mount Aso volcano in Japan, Stratum substrates include a powerful mix of nutrients and minerals to nurture healthy plant growth and water conditions.
Bio-Stratum features a 1-3 mm grain size, which is great for smaller aquariums, or as a top layer in larger systems. Infused with beneficial nitrifying bacteria, it's an ideal substrate to start a new planted aquarium with, especially if you plan to keep plants with more delicate root systems.
Note: If you are keeping a shrimp system, we suggest using the standard Fluval Stratum substrate instead as it has a slightly larger grain size, providing refuge for newborn shrimp.
Maintains Ideal Water Parameters
Supporting a neutral to slightly acidic pH, Stratum substrates are ideal for live plants as well as tropical fish and shrimp commonly kept in planted aquariums. Stratum granules provide a natural way to soften water and reduce carbonate hardness, all without staining or discoloring aquarium water.
Fluval offers two versions of this popular substrate: Stratum & Bio-Stratum. See how they compare:
| Stratum | Bio-Stratum (Currently Viewing) | |
| Approximate size | 3 -5 mm Granule | 1 - 3 mm Powder |
| Promotes strong plant health, growth and colors | ✓ | ✓ |
| Supports a neutral to slightly acidic pH level | ✓ | ✓ |
| Non-compacting, porous substrate | ✓ | ✓ |
| Offers a refuge for newborn shrimp | ✓ | - |
| Infused with BIOACTIVE beneficial bacteria | - | ✓ |
| Ideal for delicate root systems | - | ✓ |
| Ideal for extensive root development | ✓ | - |
| Aquarium size usage |
Medium |
Small |
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