Pack x2 Biobizz Light-Mix 20L Soil — Indoor LED Grow Substrate

Two bags of Biobizz Light-Mix — 40L of premium organic soil for indoor LED grows. — Lightly pre-fertilized for ~3 weeks, airy and free-draining: the ideal start for cuttings, seedlings and young plants.

Confidence: hand-picked by BloomLED, designed in France, LED horticulture experts for 10+ years.

2 × 20L (40L total) · Light pre-fert · 100% organic · Ideal under indoor LEDs

Sac de terreau Light-Mix 20L - Terre pour la culture en intérieur sous lampes horticoles LEDs - Biobizz
€19.80
€19.21 Save 3%
In stock - Express shipping available
Shipping within 24H

Sac de terreau Light-Mix 20L - Terre pour la culture en intérieur sous lampes horticoles LEDs - Biobizz
€19.80
€19.21 Save 3%
In stock - Express shipping available
Shipping within 24H
€39.60
€38.41 Save 3%
Tax included
Shipping within 24H
Quantity
In stock

Pack description

ORGANIC SUBSTRATE

Biobizz Light-Mix 20L 2-Pack: 40 litres of premium soil for indoor growing

Biobizz Light-Mix is the go-to substrate for serious indoor growers. This 2-pack gives you 40 litres of an airy, free-draining and lightly pre-fertilized soil — exactly what cuttings, seedlings and young plants need under a horticultural LED lamp. A 100% organic blend of light peat, perlite and organic fertilizers, formulated for intensive grow tent cultivation where root aeration and fast drainage make all the difference.

2-pack Biobizz Light-Mix 20L organic soil from BloomLED
SpecificationValue
BrandBiobizz
Total volume2 × 20 L = 40 L
CompositionLight peat, perlite, organic fertilizers
Pre-fertilizationLight, ~2 to 3 weeks
Stable pH~6.2
UseCuttings, seedlings, young plants, indoor repotting
CompatibleBiobizz, BioCanna and T.A. Pro Organic nutrients
40LTotal volume
100%Organic certified
6.2Stable pH
2-3Weeks pre-fert

🌱 Perfect for indoor starts

The Light-Mix's gentle pre-fertilization carries cuttings and young plants without burning roots. The most versatile base to kick off a grow under LED — especially in a mini grow tent or propagator.

💨 Optimised airflow and drainage

Built-in perlite prevents compaction and boosts root oxygenation — critical under a horticultural LED lamp where substrate moisture must stay in control to avoid root rot and disease.

🍃 100% certified organic

Biobizz Light-Mix complies with organic farming standards. No synthetic chemistry: you grow clean, for yourself and for your plants.

📦 2 bags shipped by courier

40 L packaged as 2 × 20 L bags, delivered straight to your door. Easier to handle than a single big bag, more affordable than buying single units — the right amount for a full 60×60 or 80×80 grow cycle.

How much Light-Mix do I need for a 60×60 grow?

40 L is enough to fill 4 to 6 pots of 7 L (the classic size for a 60×60). With 11 L pots, plan on 3 to 4 pots — the 2-pack is sized for a full grow cycle.

Do I need to add fertilizer with Light-Mix?

The pre-fertilization lasts 2 to 3 weeks after potting. Beyond that, you'll need to add a grow then bloom nutrient — the Biobizz Bio·Grow / Bio·Bloom range is the most consistent fit, but T.A. Pro Organic or BioCanna also work very well.

Can this soil be used for cuttings?

Yes — Light-Mix is one of the best substrates for soil cuttings thanks to its airy structure and very light pre-fertilization. Pair it with a propagation LED bar like SpectraLINE for an optimal strike rate.

Selected by the BloomLED team among the most-used substrates by our indoor growers — a classic, proven across thousands of grow cycles under LED.

✓ 100% certified organic✓ Trusted Biobizz brand✓ Fast EU shipping✓ Expert BloomLED advice

Goes well with

Single Biobizz Light-Mix 20L bagPack x3 Biobizz Light-Mix 20LBiobizz Light-Mix 50L bag

Pack content

Optimize your indoor crop's start — Perfect for seedlings, cuttings, and young plants under horticultural LED lighting.

Trust BloomLED, your French expert for over 10 years in high-performance indoor growing solutions.

20L · Not pre-fertilized · pH stable · Biobizz

SOILS / GROWSHOP

Light-Mix 20L Biobizz Soil Bag: The Ideal Substrate for a Successful Start under LED

At BloomLED, we know that the foundation of a successful indoor grow is a quality substrate. The Light-Mix 20L Soil from Biobizz is specially designed to provide your plants with an optimal environment from the very first stages of their life, in perfect synergy with the efficiency of your horticultural LED lamps. This light and aerated substrate is the key to vigorous rooting and healthy growth, without the risk of over-fertilization.

Light-Mix 20L Biobizz Soil Bag for indoor growing under LED

Biobizz Light-Mix is a premium growing substrate, renowned for its airy composition and low nutrient content. It's the preferred choice for indoor growers, whether experts or beginners, who want total control over nutrient input. Its unique formulation ensures excellent root aeration and perfect drainage, essential conditions for preventing diseases and promoting rapid, robust growth.

Why choose Biobizz Light-Mix for your LED grow?

Our experts at BloomLED, with over 10 years of experience in horticultural lighting, recommend this substrate for several key reasons:

  • Total control over fertilization: Being "lightly fertilized" (not pre-fertilized), Light-Mix allows you to precisely adapt nutrients to the specific needs of your plants, thus avoiding stress related to over-fertilization, which is particularly crucial for young shoots.
  • Ideal for seedlings and cuttings: Its fine and aerated texture promotes rapid and healthy rooting, giving young plants the best possible start under the intense light and full spectrum of our horticultural LED lamps.
  • pH balanced: Light-Mix is pH balanced, which guarantees optimal nutrient absorption by your plants' roots. A stable pH is fundamental for fertilizer efficiency and overall plant health.
  • Excellent aeration and drainage: The specific composition of this soil ensures an oxygen-rich root environment and prevents waterlogging, essential factors for vigorous growth and dense root development.

The 20-liter bag is a practical format for starting multiple crops or for growers with limited space. Pair it with our BloomLED horticultural LED lights for an efficient and energy-saving indoor growing system. Designed in France, BloomLED is committed to providing you with the best equipment for your passion.

Feature Detail
Volume 20 Liters
Brand Biobizz
Substrate Type Light-Mix (lightly fertilized)
Recommended Use Seedlings, cuttings, initial growth
Compatibility Indoor growing under horticultural LED lamps
Composition Peat, perlite, vegetable fibers
20LVolume
pHBalanced
0%Pre-fertilized

🌱 Optimal Start

A light, non-pre-fertilized substrate, perfect for seedlings and cuttings, ensuring precise control of essential nutrients.

🌬️ Superior Aeration

Its unique composition ensures excellent air circulation to the roots, preventing asphyxiation and promoting robust growth.

💡 LED Synergy

Ideally suited for growing under horticultural LED lamps, it allows maximum absorption of the benefits of the light spectrum.

Is Biobizz Light-Mix soil suitable for all growth phases?

Light-Mix is particularly suitable for the seedling, cutting, and early growth phases. For more advanced growth and flowering phases, it is recommended to add appropriate nutrients or transplant into a more enriched substrate like Biobizz All-Mix, if you prefer less fertilizer management. Its advantage is giving you total control over your plants' nutrition.

What is the difference between Light-Mix and other Biobizz soils?

The main difference lies in the nutrient content. Light-Mix is "lightly fertilized" (not pre-fertilized), giving you total control over nutrient input from the start. All-Mix, on the other hand, is a heavily pre-fertilized substrate designed to cover plants' needs for several weeks. Light-Mix is ideal for growers who prefer to manage their fertilization program from A to Z, especially for sensitive plants or young shoots.

The Light-Mix 20L Biobizz Soil is the number one choice for demanding indoor growers for a perfect start to their crops under horticultural LED. Unparalleled control for exceptional results!

✓ BloomLED Expertise ✓ Biobizz Quality ✓ LED Recommended

Complete your growing equipment:

Pack x2 Light-Mix 20L Biobizz Pack x3 Light-Mix 20L Biobizz

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