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50-liter round tank with lid is a compact and versatile container for indoor cultivation, perfect for preparing and storing nutrient solutions with protection against light and contaminants. Made of opaque black polypropylene and includes a lid, ensuring a stable and clean irrigation system in small spaces.

This round tank of 50 L is made of durable and safe plastic (polypropylene) for working with fertilizers, acids, and hydroponic additives.
With 46 cm height, Ø 38 cm top and Ø 33.5 cm bottom, it provides stability and an ideal capacity/size ratio for grow tents, technical rooms, and mixing areas.
The lid limits the entry of light, dust, and insects, reduces evaporation, and helps maintain more stable pH and EC parameters. The black finish reduces algae growth and helps preserve the nutrient solution.
The round shape facilitates natural swirling during mixing, preventing salt deposits in corners and improving homogeneity.
This format fits both gravity-fed systems and with submersible pump, and is widely used in NFT setups, auxiliary DWC, drip, and light recirculation.
Available at the online grow shop of Hydroponics Blanes, known as a trusted Grow Shop with discreet shipping and a wide range of irrigation accessories to set up a complete and efficient irrigation system.
In indoor growing, the 50-liter round tank with lid serves as the central tank for water and nutrients for one or several grow tents. The 50 L format offers daily or multiple watering autonomy, minimizing repeated preparations. The lid protects the mix during resting hours and the opaque black color blocks light, reducing algae and keeping the solution more stable. The round body is very convenient for manual or aerated stirring, and makes it easy to install a submersible pump in the center with low cavitation.
It is used to store water, mix liquid fertilizers, act as a hydraulic buffer, and feed drip lines, rings, or micro-sprinklers. It is ideal in NFT setups by ensuring constant supply to the channel, and in propagation or early growth where 50 L covers the needs of several trays. The lid reduces contamination, prevents insects, and limits evaporation; in addition, the circular geometry facilitates oxygenation with air pump and diffuser stone, keeping nutrients moving and balanced for watering indoor crops evenly.
To get the most out of the 50-liter round tank with lid, it is advisable to integrate:
All these items are available at Hydroponics Blanes, trusted Grow Shop and online grow shop with a wide catalog of irrigation accessories and discreet shipping throughout Spain.
1) Place the tank leveled and accessible, near the grow table or tray.
2) Drill a hole for the bulkhead fitting if a bottom outlet is required, or submerge the pump and run the hose to the collector.
3) Fill with water, measure pH and EC, and add fertilizers in the order recommended by the manufacturer.
4) Place the lid to protect the mix; consider aeration if the solution remains for more than 24–48 h.
5) Schedule watering according to substrate and phenological stage to water indoor crops precisely.
6) Renew the solution and clean the interior periodically with diluted peroxide; rinse with clean water before reusing.
The dimensions (height 46 cm, Ø 38/33.5 cm) and the black polypropylene material offer comfortable handling, compatibility with common chemicals, and excellent stability in a volume designed for grow tents and compact setups.
The price of the 50-liter round tank with lid may vary due to promotions, packs, and stock. At Hydroponics Blanes it is common to find combined offers with irrigation accessories (pumps, filters, fittings) to complete a balanced irrigation system at the best cost.
Available at Hydroponics Blanes, trusted Grow Shop and online grow shop specialized in indoor growing. Expert support, secure payment methods, and discreet shipping in 24/48 h. After purchase, you receive an email with a discount code for your next order.
50-liter round tank with lid combines manageable size, effective opacity, and compatibility with fertilizers for comfortable work in grow tents or grow rooms.
Integrated with pump, filter, and parameter control, it acts as the heart of the irrigation system for watering indoor crops consistently and with low maintenance.
Available at Hydroponics Blanes with technical support and supply of custom irrigation accessories.