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18 Liter Black Anti-Stress Pot is a square pot made of durable plastic with great depth, perfect for indoor cultivation. The 26 x 26 x 40 cm format promotes a vigorous root system, retains moisture and nutrients better, and offers reliable drainage through bottom holes.

The deep design of the 18 Liter Black Anti-Stress Pot promotes long, well-oxygenated roots, which is essential for medium and tall cannabis plants. The dimensions 26 x 26 x 40 cm and the 18 liter capacity balance substrate volume, stability, and good anchoring for dense canopies in advanced stages.
The black color body limits light passing to the substrate, protecting beneficial microbiology.
The base integrates drainage holes that prevent waterlogging and promote air circulation in the root zone.
The square format optimizes space on shelves, tables, and indoor grow setups, allowing more units per square meter and improving the uniformity of LED or HPS lighting. Ideal for final transplants in cannabis cultivation, aromatics, and horticultural crops, this pot integrates with indoor accessories such as saucers, SCROG nets, and drip irrigation systems.
At Hydroponics Blanes, online grow shop and trusted Grow Shop, it fits into kits with aerated substrates (peat, coco, perlite) and meters that facilitate irrigation, pH, and EC control.
The stable geometry and 40 cm height provide margin for intermittent watering, helping to reduce water stress in warm environments. All accompanied by discreet shipping for home and professional projects.
In indoor cultivation, the 40 cm depth creates a substrate column with more homogeneous moisture, improving water and nutrient absorption. The 26 x 26 cm format allows efficient grids under lights, maximizing uniform PPFD. The 18 L capacity provides a water reserve that extends intervals between waterings without compromising oxygenation. The black color protects the rhizosphere from direct light and reduces algae growth with frequent watering.
It is used to boost dense root systems in cannabis plants, peppers, tomatoes, and aromatics indoors. The combination of great depth and effective drainage reduces the risk of rot, improves vegetative vigor, and supports heavy flowering. The square format increases crop density per tray, optimizing usable space in tents and technical rooms.
For a professional setup, it is advisable to combine with compatible saucers or trays (interior ≥ 26 x 26 cm) that collect runoff and facilitate drainage measurement. Other recommended indoor accessories: training nets, stakes, soft rings, labels, and drip systems with adjustable drippers. In indoor grow setups with automatic irrigation, the perforated base of the pot quickly evacuates excess water, keeping roots oxygenated and substrate aerated.
1) Preparation: Add 1–2 cm of expanded clay or coarse perlite to promote drainage. Fill with an airy mix (peat/coco + perlite). Moisten until a homogeneous texture is achieved.
2) Transplant: Place the plant centered, gently compacting to eliminate air pockets. Keep the stem neck above the substrate line.
3) Watering: Apply water or nutrient solution until 10–20% drainage is obtained through the bottom holes. Adjust frequency according to stage, temperature, and ventilation.
4) Organization: Arrange in a grid under the light, rotating 90° every few days to even out exposure. Use trays or saucers to maintain cleanliness and measure runoff.
5) Maintenance: Between cycles, empty, wash, and disinfect with a mild solution. Check perforations to ensure free water flow.
The price of the 18 Liter Black Anti-Stress Pot offers great value for its durability and root performance. Check offers and packs with substrate, saucers, and drippers at Hydroponics Blanes, online grow shop with a specialized catalog.
Available at Hydroponics Blanes, trusted Grow Shop in Spain with discreet shipping. Technical support to choose indoor accessories and set up indoor grow installations aimed at cannabis cultivation and other demanding plant projects.
Anyone looking for a robust, deep, and stable pot for serious indoor projects will find in the 18 Liter Black Anti-Stress Pot an ally for balanced canopies and active roots.
The combination of 26 x 26 x 40 cm, 18 liters, and effective drainage translates into irrigation control, space organization, and consistent results in indoor cultivation of cannabis plants.
At Hydroponics Blanes, online grow shop with discreet shipping, it is possible to complete the setup with nets, stakes, trays, and drip irrigation for a comfortable and efficient cultivation process.