Botanicare Clearex is a water-based electrolyte rinsing solution used to remove excess nutrient salt buildup from soil and soilless grow media. Applied during the final 3 to 7 days before harvest, it draws accumulated salts away from root zones, helps prevent nutrient lockout, and supports healthier flavor and yield development in the crop’s last reproductive stage. This listing is for a case of 12 × 32 oz bottles (SKU HGC732605).
Botanicare Clearex Specifications
Physical and product specifications for Botanicare Clearex 32 oz, case of 12 (SKU HGC732605), derived from supplier data and the canonical product description.
| Specification | Value |
|---|---|
| Brand | Botanicare |
| Product Name | Clearex Rinsing Solution |
| SKU / Supplier Part | HGC732605 |
| Container Size | 32 oz (1 quart) |
| Case Count | 12 bottles |
| Formula Type | Water-based electrolyte solution |
| Bottle Height | 7.5 in |
| Bottle Footprint (L × W) | 2.25 in × 5.0 in |
| Shipping Weight (per bottle) | 2.0 lb |
| Application Window | 3–7 days before harvest |
| Compatible Media | Soil, soilless grow media, hydroponic systems |
Why Choose Botanicare Clearex
Growers use Clearex when they need a targeted way to deal with accumulated nutrient salts before harvest — problems that plain water flushing addresses only partially. Here is what distinguishes this product from a standard water flush:
- Electrolyte-assisted salt removal: Clearex uses an electrolyte formula in a water-based solution to actively draw salt deposits away from root zones, rather than simply diluting them. This mechanism targets the osmotic imbalance that causes cell shrinkage and irreversible wilting.
- Prevents nutrient lockout: By removing salt buildup from soil and soilless media, Clearex restores the equilibrium plants need to uptake remaining nutrients normally. This addresses a common cause of late-crop failure that over-fertilization triggers.
- Shorter pre-harvest window: The 3- to 7-day flush window allows growers to time the final stage without sacrificing weeks of production. This is shorter than many plain-water flush protocols while still giving plants time to process and clear residual nutrients.
- Supports terpene and yield preservation: According to the product description, flushing with Clearex during the last reproductive stage encourages plants to process remaining nutrients in a way that enhances flavors and supports yield. It is designed to maintain terpene production rather than strip the plant indiscriminately.
- Works across media types: Clearex is formulated for use in soil, soilless substrates (coco, rockwool, perlite mixes), and recirculating hydroponic systems, making it useful across common production setups without needing different products per system.
Best Uses for Botanicare Clearex
Clearex is a late-cycle tool. The following scenarios represent the primary use cases described in the product’s canonical documentation:
- Pre-harvest salt flush in soil: When nutrient salts accumulate in potting soil over a long feeding cycle, Clearex can be used during the final 3 to 7 days before harvest to draw those deposits out and allow the plant to finish cleanly. This is particularly relevant for growers who have been running heavy nutrient programs.
- Soilless and coco media correction: Coco and other soilless substrates are prone to salt buildup in cation exchange sites. Running a Clearex solution through the media during the final stage helps clear accumulated deposits and restore normal osmotic conditions around the root zone.
- Hydroponic system reservoir flush: In recirculating systems, residual salt concentrations can persist even after reservoir changes. Clearex can be circulated through the system during the final days of a crop cycle to help clear the root zone before harvest.
- Recovery from over-fertilization symptoms: The product description identifies over-fertilization as a common cause of crop failure. Growers seeing signs of nutrient excess — tip burn, wilting, or salt crust at media surface — can use Clearex as part of a corrective rinse protocol, though timing relative to harvest still applies.
- Multi-cycle production operations: Commercial and semi-commercial growers running repeated cycles through the same systems or media benefit from a case-quantity format. The 12-bottle case of 32 oz bottles supports consistent use across multiple grow rooms or sequential harvests without reordering between cycles.
If you are also looking for products to support root zone health during the growing season rather than at harvest, see Advanced Nutrients Tarantula, a microbial inoculant used earlier in the growth cycle to establish healthy root mass.
Botanicare Clearex vs Similar Products
Clearex is a category-specific product — a salt-leaching rinsing solution rather than a general flushing agent or enzyme cleaner. Growers comparing options in this space typically evaluate on formula type, application timing, and compatibility with their media.
Clearex (electrolyte formula) vs plain water flushing: A plain water flush works by dilution — it requires a large volume of water and an extended period, often 10–14 days, to meaningfully reduce salt concentrations in soil or media. Clearex is formulated with electrolytes that actively draw salts out of the root zone, which is why Botanicare describes a shorter 3- to 7-day window. The trade-off is product cost per flush cycle versus water volume and time with plain water.
Clearex vs enzyme-based flush products: Some late-stage flush products use enzyme blends to break down organic matter and dead root material in addition to salt management. Clearex is not described as an enzyme product — its mechanism is electrolyte-based salt leaching. Growers primarily concerned with salt accumulation rather than organic matter breakdown may find Clearex more targeted for that specific problem.
Case format consideration: This listing is the 12 × 32 oz case (HGC732605). Botanicare Clearex is also available in larger individual sizes (1 gallon, 2.5 gallon) for growers who prefer bulk format over case packs. The 32 oz case is well-suited to operations running multiple small-to-medium systems concurrently, where per-room dosing from individual bottles is more practical than dispensing from large containers.
For growers also managing soil biology and organic amendments alongside their nutrient program, Earth Juice Hi-Brix Molasses is a complementary product used earlier in the cycle to feed soil microbes — a different function from what Clearex addresses at harvest time.
Compatibility
Clearex is designed for use across the most common grow media and system types used in controlled-environment agriculture. The product description explicitly references soil, soilless grow media, and the general context of hydroponic production.
- Soil and amended potting mixes: Clearex works in organic and conventional soil mixes where nutrient salts accumulate over a feeding cycle. It draws deposits out of the substrate and away from the root zone.
- Soilless substrates: Includes coco coir, rockwool, perlite, clay pebble, and similar inert media. These substrates can hold salt deposits in their structure, and Clearex’s electrolyte mechanism is relevant to clearing them.
- Hydroponic and recirculating systems: The product is applicable to ebb-and-flow, NFT, DWC, and other recirculating formats where root zone access allows the solution to contact and flush the root mass directly.
- Drain-to-waste systems: In drain-to-waste configurations, Clearex can be applied as the final feed solution, with the runoff carrying displaced salts out of the system.
Clearex is a water-based solution and does not contain NPK nutrients, so it does not alter the nutrient balance when used as a flush. Growers using automated dosing systems should note that Clearex is applied as a standalone rinse rather than mixed into the standard nutrient reservoir during feeding cycles.
For operations that track root health through the full cycle, Heavy 16 Roots is a root-zone support product used during vegetative and early flowering phases — a different point in the production schedule from where Clearex is applied.
Usage Guidelines for Botanicare Clearex
The following dosing and timing information is derived from the canonical product description. Botanicare has not published a specific dose rate per gallon in the canonical row data available here; growers should consult the label on each bottle for the manufacturer’s recommended application rate.
- Timing: Apply Clearex during the final 3 to 7 days before harvest. This window allows the solution sufficient time to draw salt deposits from the root zone and media while still giving the plant time to process remaining nutrients before the crop is cut.
- Application method: Use Clearex as the sole irrigation input during the flush period. Do not combine with nutrient solutions during flushing — the goal is to clear the media of salt accumulation, not to continue feeding.
- Media saturation: Ensure the solution fully saturates the root zone. In container growing, flush until runoff is visible. In recirculating systems, circulate Clearex through the system for the duration of the flush period before draining and rinsing.
- EC monitoring: Monitoring runoff or reservoir EC during the flush can help growers verify that salt levels are dropping. A declining EC reading over successive irrigations indicates that the leaching process is working.
- Pre-harvest benefits: The product description states that flushing with Clearex triggers the last reproductive stage of plants, which can enhance crop flavors and yields by encouraging the plant to process its remaining internal nutrients rather than storing them as residual compounds.
How to Use Botanicare Clearex
The following steps outline a typical Clearex flush protocol based on the product description and standard practice for salt-leaching rinsing solutions. Refer to the bottle label for the manufacturer’s specific dilution rate.
- Determine timing: Count back 3 to 7 days from your planned harvest date. This is when the Clearex flush begins. Stop feeding nutrients at this point.
- Mix the solution: Measure Clearex concentrate per the label’s recommended dose rate. Add to pH-adjusted water. Clearex is water-based and does not contain pH-adjusting agents, so pH your water to the appropriate range for your media type (typically 5.8–6.2 for hydroponics, 6.0–6.5 for soil) before adding Clearex.
- Saturate the root zone: Apply the Clearex solution to fully saturate your grow media. For containers, irrigate until you see runoff. For recirculating systems, fill the reservoir with the Clearex solution and circulate normally.
- Allow the solution to work: Let the electrolyte formula draw salts from the media over the flush period. In soil and soilless media, this happens through each successive irrigation. In recirculating systems, the continuous circulation keeps the solution in contact with the root mass.
- Monitor runoff EC: After each irrigation, check the EC of the runoff or return water. A declining EC over the flush period confirms that salts are being removed from the root zone and media.
- Continue until harvest: Maintain the Clearex flush protocol for the full 3 to 7 day window. Do not reintroduce nutrient solution during this period. Harvest on your planned date once the flush is complete.
- Storage between uses: Store unused Clearex concentrate in a cool, dry location out of direct sunlight. Close the bottle tightly after each use. Do not transfer to unmarked containers.



















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