Growth Technology - Optimum Bloom Two-Part Base Nutrient Set (5.5L Part A & Part B) – Commercial Facility Generative Mineral Foundation Tailored for Hydroponic Substrates
Please note the above shipping is an estimation only. Actual shipping cost can be calculated on the checkout page.
Important shipping notice: This product is not stocked at our Thomastown, VIC warehouse and is dispatched from another local warehouse. Please allow approximately 1-2 weeks for it to reach us before it is ready for pickup or dispatch.
Growth Technology - Optimum Bloom Two-Part Base Nutrient Set (5.5L Part A & Part B) – Commercial Facility Generative Mineral Foundation Tailored for Hydroponic Substrates
Maximize floral density, accelerate bloom site development, and drive intense essential oil production with the Growth Technology Optimum Bloom Two-Part Base Nutrient Set. Explicitly engineered to meet the rigid data logging tolerances and heavy throughput requirements of commercial greenhouse ranges, vertical indoor farms, and high-performance substrate loops, this premium twin-pack liquid mineral matrix delivers uncompromised generative nutrition. Cultivating high-performance crops inside active hydroponic systems requires an incredibly stable, highly bio-available fertilizer baseline that can interact seamlessly with inert materials without falling out of solution. Standard multi-part nutrients frequently suffer from poor elemental stability, which triggers sudden mineral precipitation and stubborn root-zone deficiencies when routed through aggressive irrigation networks. The Growth Technology engineering solution completely eliminates those structural cultivation vulnerabilities. As one of the foundational, time-tested products introduced by industry pioneers Growth Technology, Optimum remains one of Australia's most trusted and relied-upon hydroponic solutions. This premium dual-pack concentrate delivers a complete and balanced formulation, supplying every essential macro-nutrient, secondary element, and fully chelated trace mineral required for heavy flowering and fruiting performance. Formulated as a non-viscous, clean-running two-part (Part A & Part B) liquid concentrate set, it is especially designed to maintain optimal nutritional equilibrium in systems using technical media—including clay pebbles, horticultural perlite, and premium rockwool blocks. Packaged in a mid-sized 5.5-litre dual-jug commercial facility kit, Optimum Bloom keeps your automated reservoirs running perfectly clean while packing dense weight and intense aromatic complexes across your entire canopy layout.
Best For: Powering active recirculating reservoirs, stabilizing nutrient availability across inert substrates, maximizing floral density and weight, and ensuring a sediment-free baseline feed for automated commercial loops.
Key Features & Technical Advancements
- Time-Tested Australian Performance Legacy: One of the market's most trusted twin-pack formulations, relied upon by commercial operators for decades to deliver predictable, high-performance results.
- Optimized Inert Substrate Calibration: Specially balanced to counteract the zero-nutrient buffering nature of technical media like expanded clay, porous perlite, and rockwool slabs during intense flower cycles.
- Generative-Biased Mineral Profiles: Pivots elemental delivery toward highly bio-available phosphorus and potassium ratios required to fuel rapid bloom site clustering and heavy final fruit weight.
- Advanced Two-Part Fluid Engineering: Isolates reactive mineral groups into separate Part A and Part B jugs to ensure total chemical integrity and maximum freshness prior to dilution.
- 100% Residue-Free Soluble Integrity: Dissolves instantly into solution without creating sticky surface films or crystal sludge, keeping fine inline filters and drip emitters clear of blockages.
- Perfect for Automated Injection Loops: The smooth, low-viscosity fluid profile ensures highly consistent siphon tracking when pulled through automated inline liquid dosing pumps and multi-channel networks.
Product Technical Specifications Matrix
| Nutrient, Formulation, & Substrate Parameters | Engineering Metric / Design Detail Options |
|---|---|
| Brand & Manufacturing Partner | Growth Technology (GT) / Hydroponic Fluid Specialists |
| Primary Nutrient Classification | Professional Two-Part (Part A + Part B) Generative Base Nutrient Set |
| Total Liquid Volume Packaging | 5.5-Litre Part A Jug + 5.5-Litre Part B Jug (Matched Commercial Facility Kit) |
| Target Media & Cultivation Style | Inert Hydroponics (Expanded Clay, Horticultural Perlite, Rockwool Blocks) |
| Formulation Composition Grade | Premium Concentrated Liquid Mineral Matrix (Residue-Free) |
| Micro-Nutrient Stability Profile | Fully Chelated Trace Elements Optimized for Technical Hydro-Loops |
| Fluid Mixing Characteristics | 100% Immediate Soluble Dispersion (Leaves Zero Undissolved Sludge) |
| Compatible Hardware Systems | Drip Irrigation Manifolds, Automated Dosing Pumps, and Recirculating Loops |
| Primary Operational Benefit | Drives Heavy Bloom Clustering, Enhances Floral Aromas, and Prevents Transition Shock |
Advanced Reservoir Modification & Substrate Control Tips
- Executing a Professional Reservoir Mixing Routine: To ensure total chemical stability and prevent target minerals from binding together in concentrated forms, you must follow a strict, sequential mixing protocol based on your official Growth Technology Feed Sheet. Always fill your main water reservoir with fresh water first before adding any concentrates. Pour in the required dosage of Optimum Bloom Part A and stir the tank thoroughly for 2 to 3 minutes until it is completely mixed. *Never* mix Part A and Part B together directly in their raw, concentrated forms, as doing so triggers instant chemical precipitation, causing vital minerals to drop out as useless sludge. Once Part A is fully diluted in the tank, add your matching dose of Optimum Bloom Part B and mix thoroughly again. Let the entire reservoir circulate for 5 to 10 minutes before checking your electrical conductivity (EC) and adjusting your final pH to your desired target range.
- Root-Zone Hydration and Substrate Coordination: Keeping your base nutrient solution perfectly balanced ensures your irrigation systems deliver stable nutritional profiles, protecting your root zones from severe salt stress. For optimal root vitality, accelerated nutrient absorption, and uncompromised drainage, route your perfectly tracked fertilizer recipes into a high-porosity 70/30 blend of Coco Coir and Horticultural Perlite. To maintain highly uniform moisture profiles across your entire bench layout, pressurize your feed lines using a heavy-duty Plont PPH Submersible Pump managed by an automated digital shot-timer.
- Generative Ion Targeting on Inert Structural Media: When operating inside clay, perlite, or rockwool during peak bloom, the plants require instant access to pure ionic fractions without biological delays. Because GT Optimum Bloom delivers these elements in highly refined, pre-chelated formats, the root interface can selectively pull mass amounts of phosphorus and potassium. This continuous mineral pipeline fuels the rapid expansion of floral clusters, increases internal sugar transport, and yields denser, structurally heavier flower sites.
- Managing Multi-Part Solutions inside Automated Dosing Loops: When linking this premium two-part base nutrient to automated inline dosing systems, always dedicate completely separate stock tanks and injection channels for Part A and Part B. Ensure your inline mixing manifold is positioned down-line from your freshwater input loops, allowing each part to dilute completely into the water stream before the separate channels meet. Inspect your injection lines monthly and wipe down your system's digital sensors with dedicated electrode cleaner to prevent fine residue scale from throwing off your automated dosing commands.
Ideal For (Uses)
- Active Technical Hydroponic Arrays: The primary base feed baseline for operators running commercial rockwool slabs, expanded clay flood-and-drain grids, or active perlite Dutch buckets during generative phases.
- High-Value Generative Crop Maximization: An exceptional formulation strategy for facility managers seeking to push specific flower genetics to their absolute limits regarding cell density, terpene profiles, and total dry weight.
- Commercial Scaling and Automation: Perfect for high-capacity vertical arrays and greenhouse loops that utilize commercial fluid injectors, batch tanks, and automated environmental feed software.
Oversized Item Delivery Options
Since oversized items require special handling, we may need to provide a custom freight quote for your order and will contact you with an updated shipping rate.
Available options include:
✔ Delivery to your closest depot for pickup - default method
✔ Direct delivery - requires forklift on site
✔ Direct delivery with tailgate lift truck (extra fees apply)
✔ Forklift loading at our warehouse (no extra charge if you arrange your own freight)
✔ Direct truck delivery (available in Victoria)
Important Notes:
- Shipping costs vary by location and method
- Because of the forklift requirement, delivery to the nearest depot is the default option and will be the method used unless you contact us to request otherwise.
Business Delivery:
- Business delivery is available for commercial customers only
- If you select business delivery and your products are bulky, it is your responsibility to ensure you have appropriate equipment (including forklifts) to unload products from the delivery truck
- If you select business delivery and you are not a business, you risk your product not being delivered and may incur additional fees to retrieve your order
- Business delivery customers must provide a valid business address and contact information
- Additional fees may apply for failed delivery attempts due to lack of appropriate unloading equipment
Let us know your preference, and we'll arrange the best solution for you!
Important Note on Availability & Shipping
Our warehouse serves as our office and logistics centre rather than a retail showroom. Because we ship from multiple locations and manage high-turnover stock, not all items are available for immediate pickup.
Lead Times:
- In-Stock Items: Usually ready for dispatch the same day.
- Supplier-Dependent Items: Usually take 2–8 weeks to arrive, depending on supplier availability. Products from Adloheat may take 8–12 weeks to manufacture—they are made to order in Australia by a small business, and longer lead times reflect the care put into quality.
While we strive for fast delivery, some timelines are subject to supplier availability and are beyond our control. We appreciate your patience as we source the best quality gear for your project.
Biosecurity & Interstate Shipping Restrictions
Due to strict state biosecurity regulations, we are unable to ship some products to certain states and territories:
- Potting Mixes cannot be shipped to Western Australia (WA), the Northern Territory (NT), or Tasmania (TAS).
- Seeds cannot be shipped to Western Australia (WA).
Orders placed for these items to restricted states will be cancelled and refunded. It is the customer's responsibility to ensure that the items being ordered can lawfully be delivered to their state or territory.
We Offer the Best Prices
We are committed to offering our customers the best prices possible. If you find the exact same product advertised at a lower price elsewhere, we invite you to contact us and we will review your price match request.
Price Match Conditions:
- The competitor must be an Australian-based seller with a physical presence in Australia
- The product must be the exact same item with a matching SKU or model number
- The product must be in stock and available for purchase at the competitor
- The lower price must be publicly advertised and currently available (not a clearance, closeout, or discontinued item)
- Price matching excludes marketplace platforms including but not limited to Temu and Aliexpress
- Price matching requests must be made before purchase
How to Request a Price Match:
To request a price match, please contact us at sales@greenhousepolytunnels.com.au with a link to the competitor's product listing, or call us on 0418 438 774. Please include the product details and the advertised lower price. We will review your request and respond within 2 business days.
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