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Black Square Plate 20 x 20 cm. is a practical accessory for indoor cultivation that collects runoff, protects surfaces, and provides order on tables and trays. Square format, black finish, and versatile dimensions for medium pots in cannabis cultivation programs.

The Black Square Plate 20 x 20 cm. is made of durable plastic with a smooth surface that allows for quick cleaning between waterings. The raised edges retain excess water without spills, allowing you to measure and observe drainage to adjust watering and fertilization guidelines.
The 20 x 20 cm format fits square pots of 3–5 liters commonly used in advanced propagation and growth, optimizing distribution on shelves, tables, and work trays.
The stable base promotes even distribution of retained water, useful when the substrate is very dry and it is advisable to hydrate by capillarity in a controlled manner.
Whenever this technique is used, it is advisable to remove excess water at the end of the day to avoid prolonged saturation that could harm the roots.
This plate helps keep work areas clean, reduces unnecessary humidity in the environment, and simplifies hygiene tasks in indoor grow facilities.
Ideal for programs with cannabis plants that require reading the EC/pH of the drainage and fine control of the watering schedule.
Available at Hydroponics Blanes, online grow shop with discreet shipping, a wide range of indoor accessories, and technical advice from a trusted Grow Shop.
In tents and rooms, the Black Square Plate 20 x 20 cm. allows you to align containers and keep aisles dry, avoiding stains or deterioration on trays and tables. The black color hides marks between cleaning cycles and coordinates with standard pots and trays. For teams seeking reproducibility in indoor growing, this plate facilitates runoff collection, drainage measurement, and adjustments by variety, stage, or nutritional strategy.
It is used to collect excess water, protect surfaces, and enable capillary irrigation at specific times. It helps prevent puddles under the pot and prevents root rot from continuous exposure to water. It also provides useful data: measuring the volume and conductivity of the drainage allows you to fine-tune fertilization in cannabis cultivation, maintaining healthy growth rhythms and reducing waste.
Excellent combination with square pots of 3–5 L, growing trays, EC/pH meters, absorbent mats, self-compensating drippers, and micro-sprinklers. An extraction system and suitable oscillating fan stabilize the microclimate and reduce condensation around the watering area. The entire ecosystem of indoor accessories is available at Hydroponics Blanes with discreet shipping and technical support to properly size indoor grow facilities.
1) Select a compatible pot (square format of 3–5 L works ideally). 2) Place it centered on the plate to ensure stability. 3) Water until slight runoff; the plate retains excess for drainage review. 4) In case of capillarity, add a very thin layer of water and remove excess at the end of the day. 5) Record volumes, EC, and pH of the drainage to adjust the nutritional guideline. 6) Clean the plate with warm water and, if necessary, a disinfectant solution suitable for horticulture; this habit reduces pathogens and promotes crop health.
The price of the Black Square Plate 20 x 20 cm. is competitive and scalable in packs. It is a minimal investment with a direct impact on order, hygiene, and irrigation control within indoor grow facilities. At Hydroponics Blanes you can find offers and combinations with pots, trays, and consumables.
Available at Hydroponics Blanes, online grow shop specialized in cannabis cultivation, with technical advice, spare parts, and discreet shipping throughout Spain. A reference point as a trusted Grow Shop to complete everything from propagation to harvest with a robust catalog of indoor accessories.
The Black Square Plate 20 x 20 cm. provides cleanliness, control, and efficiency to the work area. Size designed for medium pots, durable material, and square design that optimizes alignment and drainage collection.
A simple piece that makes a difference in the performance of cannabis plants within professional indoor growing programs, supported by the technical catalog of Hydroponics Blanes.
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