Grotek Precision Bloom – 23 L

Grotek Precision Bloom – 23 L is the bloom-stage liquid concentrate in GroTek’s 3-Part Precision base nutrient system. Combined with Precision Grow and Precision Micro, it forms a complete fertilizer program designed for soilless media and hydroponic production systems. The 23 L container is sized for commercial and large-scale hobby grows that run consistent feed schedules throughout the flowering stage.

Grotek Precision Bloom Specifications

Key physical and product specifications for Grotek Precision Bloom – 23 L, derived from supplier and canonical product data.

Why Choose Grotek Precision Bloom

Grotek built the Precision line as a straightforward, three-part system that removes the guesswork from mixing base nutrients. Here is what differentiates Precision Bloom in that program:

• Designed as part of a complete system. Precision Bloom is not a standalone product — it is engineered to work in tandem with Precision Grow and Precision Micro. Together the three components cover the full crop cycle from vegetative growth through bloom, which means the grower is not sourcing from multiple incompatible nutrient lines.
• Formulated for soilless and hydroponic production. The Precision series is built around the requirements of recirculating and run-to-waste hydroponic systems, as well as inert soilless media such as coco coir and rockwool, where the nutrient solution is the sole source of plant-available minerals.
• Full-cycle fertilizer package. GroTek positions the 3-Part Precision nutrients as a complete fertilizer program — growers do not need to source additional base nutrients beyond the three components to cover both vegetative and flowering stages.
• Commercial-scale container. At 23 L, this bottle is sized for operations that go through significant volume during bloom. It reduces the per-litre cost relative to smaller retail sizes and limits how frequently containers need to be replenished during a run.

Best Uses for Grotek Precision Bloom

Grotek Precision Bloom – 23 L is a base nutrient for the flowering stage, suited to operations where the grower controls the full nutrient program with a 3-part liquid system.

• Hydroponic systems — deep water culture (DWC), nutrient film technique (NFT), ebb-and-flow, and recirculating drip systems where a soluble liquid concentrate feeds plants directly through the root zone.
• Soilless media grows — rockwool, coco coir, perlite, and similar inert substrates that depend entirely on the feed solution for mineral nutrition through the bloom phase.
• Commercial and large-scale hobby grows — the 23 L format is practical for facilities that run multiple crop cycles and need a consistent, reliable bloom base nutrient in sufficient volume to avoid mid-run restocking.
• Growers already running the Precision system — if you have Precision Grow and Precision Micro in your program, Precision Bloom is the direct companion product for the transition to and through flowering.
• Operations transitioning from multi-brand nutrient programs — consolidating onto a single three-part base system can simplify mixing, record-keeping, and reordering for established grow operations.

If you are building out a broader nutrient program, beneficial microbial inoculants are commonly added alongside base nutrients to support root-zone health during bloom. Growers interested in organic inputs can also explore molasses-based carbohydrate supplements as optional additions to a hydroponic feeding program.

Dosing Guidelines

Grotek does not publish a dose rate in the canonical product data available for this listing. The general practice for 3-part liquid base nutrients in hydroponic and soilless systems is as follows — always defer to the current GroTek Precision feed chart available on the GroTek website for exact measurements.

• Shake or gently agitate the concentrate before measuring to ensure uniform distribution of any settled solids.
• Measure Precision Bloom, Precision Grow, and Precision Micro separately using a calibrated syringe or graduated measuring cup. Add each part individually to the reservoir or mixing container, not together in concentrate form.
• Start with the lowest recommended dose and monitor EC (electrical conductivity) to confirm you are within the appropriate range for your crop’s flowering stage.
• Adjust pH of the finished nutrient solution to 5.5–6.2 for hydroponic systems, or 5.8–6.5 for soilless media, before feeding.
• Monitor runoff EC and plant response weekly; adjust dose up or down based on observed uptake and any signs of excess or deficiency.
• Flush the system with plain, pH-adjusted water for 1–2 weeks before harvest to clear residual mineral salts.

For the official Precision feed schedule and recommended dose rates by week and growth stage, consult the GroTek website directly (see Sources below).

Sources & Further Reading