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Bi-Grow mix substrate 50 Liters is an organic mixture with an airy texture, ready to use in indoor cultivation. With medium fertilization, pH 6 (H₂O) and EC 1.5 mS, it facilitates a vigorous start of the root system and predictable irrigation management in cannabis substrate projects. Available at Hydroponics Blanes, online grow shop with discreet shipping.

Bi-Grow Mix Substrate 50 Liters from Atami is created for those seeking an ecological and efficient medium during the growth phase. The mix is positioned between Janeco Light Mix and Kilomix, achieving a balance between nutrient reserve and aeration.
The matrix includes coconut fiber (sourced from Sri Lanka) for uniform capillarity, peat fractions, and conditioners that maintain a spongy structure throughout the cycle.
The base fertilization is medium, with initial support thanks to a NPK 12-14-24 fertilizer dosed at 1.5 kg per m³. The RHP certification guarantees physical stability and impurity control, a key aspect when working with frequent watering and parameter readings.
The mix comes with pH 6 (H₂O method) and EC 1.5 mS, values that allow a direct start with water or very mild solutions.
Declared properties: dry matter 19.5%, organic matter 91.5%, and water retention 1.44, combining useful water reserve with macropores for oxygenation.
The structure free of harmful fungi favors clean rooting after transplant and reduces compaction in fabric or plastic pots.
In LED or HPS grow tents, this recipe responds with clear drainage and homogeneous behavior between waterings, ideal for those who want controlled growth before intensifying nutrition in the transition to flowering.
At Hydroponics Blanes, trusted Grow Shop, it comes with technical advice and discreet shipping throughout Spain.
In indoor cultivation it offers stable porosity and continuous airflow in the rhizosphere, promoting fine roots and rapid root expansion. The medium fertilization supports consistent vegetative growth without saline excess, while the coconut fiber provides moisture redistribution between waterings. Works with manual or drip irrigation, in 7–18 L pots, both in compact tents and on grow tables.
It serves as a main medium for the growth phase and for complete cycles with progressive nutritional management. It is a versatile base for rooted cuttings and young plants that require water/air balance, with ease to introduce liquid fertilization according to demand. In substrates for cannabis, it stands out for stability, oxygenation, and consistency from batch to batch.
Indicative composition and key parameters: medium fertilization with NPK 12-14-24 (1.5 kg/m³), EC 1.5 mS, pH 6 (H₂O), RHP. Integrates coconut fiber for capillarity and structure, peat fractions of different granulometry for physical support, and organic amendments that feed a beneficial microbiota. Airy texture that facilitates root respiration and reduces the risk of suffocation from excess water.
Initial conditioning: lightly moisten and let rest 12–24 h to activate components and stabilize moisture.
Transplant: fill containers without compacting; level with the palm to preserve macropores. Effective drainage is recommended and, if desired, a base layer of clay pebbles (2–3 cm).
Watering during growth: start with adjusted water, allowing slight drying between waterings to encourage oxygen entry. Observe pot weight and leaf response.
Progressive nutrition: once the medium fertilization is depleted, introduce mild organic or mineral liquid fertilizers, increasing dosage according to demand and pH/EC measurements in the drainage.
Good practices: keep the substrate warm; microbial activity improves at moderate temperatures. Avoid waterlogging and ensure tent ventilation.
The 50 L format offers a very competitive volume/performance ratio for medium tents and grow rooms. Check availability and offers at Hydroponics Blanes, with specialized technical support and discreet shipping from a recognized online grow shop as a trusted Grow Shop.
Available at Hydroponics Blanes with a catalog of EC/pH meters, drip irrigation, stimulators, and accessories for indoor cultivation. Fast logistics and support to adjust the plan from the first transplant.
Bi-Grow Mix Substrate 50 Liters provides a real balance between initial nutrition, aeration, and water retention. A versatile ally for controlled growth and healthy roots in substrates for cannabis projects, backed by the Hydroponics Blanes team with expert advice, discreet shipping, and a smooth experience in online grow shop.
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