Fluval Betta Stratum

Fluval Betta Stratum is a Japanese volcanic soil substrate made specifically for betta and small planted aquariums. The 1 to 3 mm granules are infused with beneficial bacteria to jump-start biological filtration, support healthy plant roots, and hold a neutral to slightly acidic pH that bettas and tropical plants love. Pair it with betta food and live plants to build a low-maintenance planted betta home.

Features

• Japanese volcanic soil promotes vigorous plant growth and vibrant color
• Infused with beneficial bacteria to boost biological filtration and water quality
• Supports a neutral to slightly acidic pH, ideal for bettas and planted tanks
• Lightweight, non-compacting granules let roots spread and reach nutrients
• 1 to 3 mm granules sized for bettas, so uneaten food stays accessible
• Smooth texture helps protect delicate betta fins
• Softens water naturally by reducing carbonate hardness
• Dark substrate makes betta colors pop and will not stain the water
• Ideal for nano and small freshwater aquariums

How to Use

Add a bed of about 1 inch across the bottom of your aquarium, then fill slowly over a plate or bag to keep the water clear. The dormant bacteria in the substrate awaken once submerged, so add it before you plant and cycle the tank. A single 1.76 lb (0.8 kg) bag suits a typical nano or betta tank.

Specifications

Recommended Pairings

• Live aquarium plants to root directly into the stratum
• Betta food for daily feeding
• Freshwater supplies like a conditioner, heater, and gentle filter

FAQ

Do I need to rinse it first? No. Add it dry and fill the tank slowly to avoid clouding. Any light initial haze clears within a day or two as the substrate settles.

How much do I need? One 1.76 lb bag covers a nano or small betta tank at about a 1 inch bed. Deeper beds or larger footprints may need a second bag.

Will it lower my pH? It helps hold a neutral to slightly acidic range and softens water by reducing carbonate hardness, which suits bettas and most tropical plants.

Does the beneficial bacteria survive in the bag? Yes. The bacteria are conditioned into a dormant state for packaging and awaken once the substrate is submerged in your aquarium.