Biotabs

Our complete BioTabs range

Most organic fertiliser lines still require daily measuring, mixing and pH adjustments. BioTabs takes a fundamentally different approach: instead of feeding the plant directly, the system builds a living soil that does the work for you. Prepare your medium once, transplant, then water with plain tap water for the rest of the cycle. The science behind it — mycorrhizal networks, beneficial bacteria and slow-release organic tablets — is well established. At Plant & Flower, your Belgian grow shop since 2011, we stock the complete BioTabs range for living-soil cultivation.

A ready-to-grow living soil system

Where brands like BioCanna offer liquid organic feeds that still require regular dosing, BioTabs front-loads the nutrition into the growing medium. The core products — 21-gram NPK 15-7-8 tablets, soil conditioner, mycorrhizae and bacteria — are all applied at potting time. They release macro-nutrients steadily across 8 to 10 weeks. Only the bloom booster is added later via the watering can.

Technical specifications of the system

• Tablets: NPK 15-7-8, 21 g per tablet, 8-10 week slow-release, not vegan (animal by-products)
• Startrex: soil conditioner with humic and fulvic acids, 1.5 kg and 5 kg formats
• Mycotrex: mycorrhizal fungi for root symbiosis, 100 g and 500 g
• Bactrex: bacterial inoculant (nitrogen-fixers and phosphate-solubilisers), 50 g and 250 g
• Bio PK 5-8: liquid bloom booster NPK 2-5-8, dose 1-3 ml/L
• Guerrilla Juice: versatile liquid fertiliser NPK 4-3-3, Control Union Certified
• Compatibility: soil and coco only, not for hydroponics (organic nutrients)

The programme step by step

Start with Startrex mixed into your substrate when filling pots — it kickstarts microbial activity that will convert organic matter into plant-available nutrients. When transplanting, dust Mycotrex directly onto the roots to establish mycorrhizal symbiosis, and dissolve Bactrex in your first watering to colonise the rhizosphere.

Push the fertiliser tablets 5-10 cm deep into the medium. Dosage: 1 tablet per 5 L of substrate up to 40 L pots, then 1 tablet per 10 L for larger containers. Larger-scale growers prefer the 100-tablet box for better per-unit pricing. Once flowers begin forming, add Bio PK 5-8 at 1-3 ml per litre of water to support flower development.

Starter Pack and outdoor alternative

The BioTabs Starter Pack bundles tablets, Startrex, Mycotrex, Bactrex and Orgatrex in measured quantities for 5 to 10 plants — the practical entry point for growers switching from mineral fertilisers who want to test the living-soil method before committing to full-size products. For outdoor growing where substrate preparation is limited, Guerrilla Juice provides a versatile liquid all-in-one solution.

Why growers switch to BioTabs

No pH adjustment needed — the humic acids in Startrex naturally buffer the root zone as long as your water falls between 6.0 and 8.0. No daily measuring — the tablets provide steady nutrition across the entire cycle. Dramatically lower risk of nutrient burn thanks to slow release. Richer aroma and flavour profiles from diverse organic nutrient sources. Full compatibility with Belgian tap water (typically 15 to 30 °dH).

FAQ - Frequently asked questions about BioTabs

All BioTabs products are in stock and ship quickly from Plant & Flower throughout Belgium. Our team gladly advises on choosing between BioTabs (slow-release tablets) and liquid feed systems for your soil or coco cultivation.