Advanced Nutrients pH Perfect Connoisseur Coco Grow – Grow B is Part B of an ultra-premium 2-part base nutrient system engineered specifically for experienced growers running coco coir substrates. It delivers diversely chelated iron and fully chelated primary, secondary, and micronutrients during the vegetative stage, and uses pH Perfect Technology to automatically stabilize reservoir pH without manual adjustment.
pH Perfect Connoisseur Coco Grow B Specifications
Connoisseur Coco Grow is sold as a matched 2-part system (Part A and Part B). Both parts must be used together at equal ratios for the formulation to work as designed. The table below covers the key specifications for the 4-litre Part B bottle based on manufacturer documentation and canonical product data.
| Specification | Value |
|---|---|
| Brand | Advanced Nutrients |
| Product Name | pH Perfect Connoisseur Coco Grow – Part B |
| Part Type | 2-Part Base Nutrient — Part B of 2 |
| Growth Phase | Vegetative (Grow) |
| Substrate | Coco Coir (specifically formulated) |
| Volume | 4 Litres (4L) |
| Weight (shipping) | 12.50 lb |
| pH Technology | pH Perfect® (automatic pH stabilization) |
| Chelation | All primary, secondary, and micronutrients fully or partially chelated |
| Iron Delivery | Diversely chelated forms of iron (addresses coco coir iron deficiency) |
Why Choose pH Perfect Connoisseur Coco Grow B
This product is positioned by Advanced Nutrients as their top-tier grow-phase base nutrient for coco coir. Here is what differentiates it from standard base nutrient lines:
- Formulated specifically for coco coir: Coco coir has a known affinity for binding iron, leaving plants deficient even when iron is present in the reservoir. Connoisseur Coco Grow addresses this directly with diversely chelated iron sources that remain available in the coco environment.
- Comprehensive chelation across all nutrient classes: All primary, secondary, and micronutrients in this formula are fully or partially chelated. Chelated nutrients remain soluble and plant-available across a wider pH range compared to non-chelated salts, reducing the risk of lockout.
- pH Perfect Technology removes manual pH management: The formulation’s buffering system automatically holds reservoir pH in the target range throughout the grow cycle. Growers who use it as directed typically do not need to check or adjust pH daily, which reduces labor in larger operations.
- Designed as a matched 2-part system: Part A and Part B are formulated together so that certain elements are kept separate until mixing time, preventing precipitation in the bottle. Using both parts together at the labeled rate delivers the complete nutrient profile the formula was designed around.
- Positioned for growers who have maximized simpler systems: According to the manufacturer, this product is intended for experienced coco coir growers who have already optimized a standard feeding program and are looking for a more precisely engineered formulation to support further yield development.
Best Uses for pH Perfect Connoisseur Coco Grow B
This nutrient is designed for a specific type of grower and setup. It performs best in the following scenarios:
- Coco coir-based systems in the vegetative phase: The formula is calibrated for coco’s unique cation exchange properties during the grow phase. It is not intended as a general-purpose nutrient for soil or pure hydro without coco.
- Recirculating and run-to-waste coco setups: Whether you’re running a Dutch-bucket recirculating system or a drain-to-waste coco slab setup, Connoisseur Coco Grow works with the higher irrigation frequencies typical of coco cultivation.
- Commercial or large-scale coco grows: The 4-litre bottle size suits larger operations. Because pH Perfect Technology reduces the time spent adjusting reservoir pH, it is especially practical for growers managing multiple reservoirs simultaneously. Pair it with a root inoculant like Advanced Nutrients Tarantula to support root zone health in coco during the grow phase.
- Growers troubleshooting iron deficiency in coco: If you have experienced interveinal chlorosis or persistent iron lockout in coco coir grows, the diversely chelated iron in this formula addresses the mechanism behind that deficiency.
- Paired with compatible Advanced Nutrients additives: Connoisseur Coco Grow B is designed to work within the broader Advanced Nutrients system, compatible with their bloom-phase additives when plants transition out of the vegetative stage.
pH Perfect Connoisseur Coco Grow vs Similar Products
Advanced Nutrients offers multiple coco-specific base nutrient lines at different price and complexity tiers. Understanding where Connoisseur Coco Grow sits in that range helps you decide whether it fits your operation.
Standard 2-part coco base nutrients from other brands typically use one or two chelated iron sources and rely on the grower to manage pH manually. The pH Perfect Connoisseur Coco Grow line differentiates itself on three fronts: automated pH stabilization via the pH Perfect buffering technology, a broader diversity of chelated iron forms designed to remain available in coco’s high-calcium, high-magnesium environment, and comprehensive chelation across all nutrient tiers (primary, secondary, and micro) rather than selective chelation of just a few elements.
Within the Advanced Nutrients portfolio, Connoisseur Coco Grow is the higher-specification option compared to their entry-level Sensi Coco Grow line. Sensi Coco Grow also includes pH Perfect Technology and coco-specific iron chelation, but Connoisseur is formulated with a larger variety of precursor compounds and is positioned for growers who have already optimized their results with Sensi and want a more exacting formulation. If you are newer to coco or building your first nutrient program, the Sensi Coco Grow series is worth evaluating before committing to Connoisseur. For growers who also use soil or soilless media, consider how Earth Juice Hi-Brix Molasses might complement your feeding program as a carbohydrate supplement alongside a base nutrient like this one.
Compatibility
pH Perfect Connoisseur Coco Grow – Part B is designed exclusively for use with coco coir substrates. The chelation ratios and pH buffering system are calibrated for the specific nutrient interactions that occur in coco, not in peat-based media or inert hydroponic systems like rockwool or clay pebbles alone.
Part matching: This is Part B. It must always be used alongside pH Perfect Connoisseur Coco Grow – Part A at equal volume ratios. Do not use Part B without Part A, and do not substitute Part A from a different nutrient line — the two-part split is formulated to prevent incompatible compounds from being combined until they are diluted in reservoir water.
Growth phase: This product covers the vegetative (grow) phase only. When plants transition to flowering, switch to the corresponding pH Perfect Connoisseur Coco Bloom A+B system for the bloom phase.
Water source: pH Perfect Technology works within a defined source-water range. The manufacturer states that it functions best with water in the range typically supplied by municipal systems. Reverse-osmosis water or very soft water may require adjustment; consult the Advanced Nutrients feeding chart for RO-water recommendations.
Additive compatibility: This base nutrient is formulated to be compatible with other Advanced Nutrients supplements. If stacking with third-party additives, check for incompatibility with highly acidic or alkaline inputs that may override the pH buffering. Manufacturers of microbial inoculants for coco — such as those used to support root zone colonization — are generally compatible when added after pH stabilization. For a standalone root health product, see Advanced Nutrients Tarantula (250 mL).
Dosing Guidelines
Because no specific dose rate is listed in the canonical product data available at time of writing, the following general guidelines apply to 2-part coco base nutrients of this type. Always verify current rates against the Advanced Nutrients Connoisseur Coco feed chart published on their website, as recommended rates may have been updated.
- Measure both parts separately: Use a clean, calibrated syringe or graduated cylinder for Part A and a separate one for Part B. Do not let Part A and Part B contact each other in concentrate form.
- Add to reservoir in sequence: Fill your reservoir with the target volume of water. Add Part A first and stir, then add Part B and stir. Never add concentrate directly to other concentrates.
- Adjust volume ratios: The typical starting point for 2-part systems in the vegetative stage is in the range of 2–4 mL per litre for each part, increasing incrementally as plants size up. Follow the Advanced Nutrients feed chart for week-by-week rates specific to Connoisseur Coco Grow.
- Verify EC after mixing: Even with pH Perfect Technology managing pH, confirm that the electrical conductivity (EC) of the mixed solution is within the target range for your plant’s growth stage before watering.
- pH check on first use: On initial setup or if switching water sources, verify that the pH Perfect buffering is functioning as expected by checking reservoir pH 30 minutes after mixing. Adjust only if the reading is significantly out of the 5.5–6.5 range for coco.
How to Set Up and Use Connoisseur Coco Grow B
- Gather both parts: Ensure you have pH Perfect Connoisseur Coco Grow Part A and Part B before mixing. Using only one part will not deliver the complete nutrient profile.
- Shake or stir the concentrate: Before measuring, shake the Part B bottle thoroughly to resuspend any settled material in the concentrate.
- Fill reservoir with water: Add your target volume of source water (municipal or filtered) to a clean reservoir. If using RO water, consult the Advanced Nutrients feed chart for adjustments.
- Add Part A first: Measure the recommended volume of Part A using a dedicated syringe. Add to the reservoir and stir to mix completely.
- Add Part B: Measure the same volume of Part B using a separate dedicated syringe. Add to the reservoir and stir again. The pH Perfect buffering system will begin stabilizing pH as the two parts interact with the water.
- Check EC: Measure the electrical conductivity of the mixed solution. Compare against the target EC range for your current growth stage on the Advanced Nutrients Connoisseur Coco feed chart.
- Verify pH if needed: Allow the solution to stabilize for 20–30 minutes. Spot-check pH with a calibrated meter. For most source waters, pH should fall in the 5.5–6.5 range appropriate for coco without additional adjustment.
- Water plants or fill drip lines: Deliver the solution to your coco medium according to your irrigation schedule. In coco, higher irrigation frequency (multiple feeds per day) is typical — adjust feed volume, not concentration, for frequency changes.
- Transition to bloom nutrients: When plants enter the pre-flowering or flowering stage, switch from Connoisseur Coco Grow A+B to the Connoisseur Coco Bloom A+B formula.









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