Description
TARANTULA 250ML is the entry and trial size of Advanced Nutrients’ beneficial fungi, bacteria, and trichoderma root inoculant — the right format for growers who want to evaluate Tarantula’s root zone benefits before committing to the larger 500ml or 1-litre formats, or for those running small-scale growing operations where a 250ml bottle covers one to two complete growing cycles. We have been recommending the Advanced Nutrients root trilogy to UK growers since 2017 for the combination of plant growth-promoting bacteria, mycorrhizal fungi, and trichoderma biocontrol that it delivers to the root zone.
Getting the Most From the 250ml Format
At 2ml per litre through the vegetative phase, the 250ml bottle treats 125 litres of nutrient solution — sufficient for a two-to-three-week establishment period for two to four plants, or a complete vegetative cycle for a single-plant growing system. The trichoderma and beneficial bacteria cultures in Tarantula establish their root-zone colonies most effectively during the first two weeks after transplant, when the root system is actively expanding and the competition for colonisation sites between beneficial and pathogenic organisms is at its most influential. Growers who use Tarantula from day one of establishment consistently report visibly healthier, more vigorous root systems and fewer mid-cycle root zone health issues than those who forego root inoculation.
Storage and Combination
Refrigerate the Tarantula 250ml after opening to maintain culture viability — shelf life at room temperature is three to four months after opening; refrigerated, closer to six months. Combine with Voodoo Juice 250ml at the same dose rate for a cost-effective trial of the core Advanced Nutrients root biology duo before investing in the full trilogy including Piranha.
Try Tarantula 250ml alongside Voodoo Juice 250ml for a trial of the Advanced Nutrients root biology approach, then upgrade to the 1-litre formats once the root zone improvement demonstrates its value across your first treated cycle.
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