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Startrex contains a large quantity of benefitial soil bacteria that immediately work to improve the soil and ensure better uptake of organic fertilizers.

Most potting soil is sterilised to kill weed seeds and germs.This also kills all the beneficial soil bacteria and fungi. The result is that the soil life in your potting soil takes a long time to become established. By mixing your earth with Startrex, you can ensure that your soil comes to life immediately for your plant to take root more quickly.

The 3 most important components of Startrex are fulvic acids, humus and silicon. Fulvic acid is THE major transporter in nature. It enters plant cells and brings nutrients to the cells that need them.

NPK 3/1/2

Use of Biotabs Startrex:

  • Normal use: Mix 25 grams (2 eatspoons) of Startrex with each 5L of potting soil or coco.
  • For reusing soil or coco fiber: Leave the potting soil or coco in the pots. Scratch off the first 5 cm of the soil and dispose of it.
    Remove the stem, remove the big roots, leave the small roots.
    Mix 2 eatspoons of Startrex ( 25 gr) with 1 litre of soil or coco.
    Use this mix as a new toplayer.

The product can be used with all kinds of plants, flowers, vegetables, herbs, trees and shrubs, in soil or coco, potted or in-ground plants, indoors or outdoors.

Properties of Startrex

Startrex related products (BioTabs)


From 6.35€ 8.50€

UP TO 10%

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From 12.50€ 13.90€


9.00€ 9.50€

Bought together with Startrex


22.80€ 28.50€


31.60€ 39.50€


15.60€ 19.51€


23.20€ 29.00€


From 4.00€ 5.00€


40.00€ 50.00€

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