Fluval Bio-Stratum Plant & Shrimp Substrate 4.4 lb (2 kg)
Fluval Bio-Stratum 4.4 lb is a premium active volcanic soil designed for planted aquariums and shrimp tanks. This nutrient-rich substrate supports strong root development while promoting the growth of beneficial bacteria that help maintain a stable nitrogen cycle.
Its lightweight porous granules create an ideal environment for biological filtration and plant growth. Fluval Bio-Stratum also gently buffers aquarium water toward a slightly acidic pH, making it especially beneficial for freshwater shrimp, live plants, and soft-water fish species.
The 4.4 lb (2 kg) bag is perfect for nano aquariums, aquascaping layouts, and small planted tank setups.
Active volcanic soil Supports beneficial bacteria Ideal for shrimp and planted aquariums.
Key Features
Promotes strong plant root development
🦐 Shrimp-safe substrate supports healthy molting and breeding
🦠 Encourages beneficial nitrifying bacteria growth
Natural volcanic soil with porous granules
💧 Helps maintain slightly acidic pH conditions
🐠 Designed for freshwater aquariums and planted tanks
Product Details
Brand: Fluval
Product: Bio-Stratum Plant & Shrimp Substrate
Weight: 4.4 lb (2 kg)
Substrate Type: Active volcanic soil
Color: Dark brown / black
Aquarium Type: Freshwater
Ideal For:
- Shrimp tanks
- Nano planted aquariums
- Aquascaping layouts
- Soft-water community fish tanks
Aquascaping & Use Tips
- Recommended substrate depth: 1.5–2.5 inches
- Do not rinse before use, as this removes beneficial nutrients
- Can be used alone or lightly capped with sand
- Excellent for plants such as crypts, stem plants, mosses, and carpeting plants
- Root tabs may be added for heavy root-feeding plants
Frequently Asked Questions
How is Bio-Stratum different from Fluval Stratum?
Bio-Stratum is formulated to promote beneficial bacteria colonization, helping biological filtration establish faster in new aquariums.
Is Bio-Stratum safe for shrimp?
Yes. Fluval Bio-Stratum is commonly used in shrimp breeding tanks and planted shrimp aquariums.
Does Bio-Stratum affect water parameters?
Yes. It gently buffers water toward a slightly acidic pH, which many shrimp and plants prefer.
Should Bio-Stratum be rinsed before use?
No. Rinsing can remove beneficial nutrients and reduce its effectiveness.
What aquarium size does 4.4 lb cover?
A 4.4 lb bag typically works well for 5–10 gallon aquariums, depending on the substrate depth used.
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