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SeaHawk - Hydro Tank Series – Flexible Collapsible Nutrient & Water Reservoirs

$87.95 $78.95

Size: 100L

Size: 100L
100L
200L
250L
380L
500L
1000L
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Estimated delivery: 5 - 15 Business Days.

+5 days for regional locations on average [More Info]

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Description

SeaHawk - Hydro Tank Series – Flexible Collapsible Nutrient & Water Reservoirs

Achieve unparalleled environment stability and staging convenience with the SeaHawk Hydro Tank Series. Engineered specifically for seamless integration with high-performance hydroponic networks, these premium flexible reservoirs provide a highly reliable, space-saving solution for storing fresh water or active nutrient solutions. Unlike rigid plastic drums that are difficult to transport and maneuver through narrow grow room doorways, the SeaHawk Hydro Tank features a completely collapsible design that can be carried into any cultivation zone and built up in minutes. Fabricated from advanced, heavy-duty materials, these tanks do more than just hold water—their specialized thermal and light-blocking structural profile helps sustain uniform water temperatures and stable pH levels, ensuring ideal conditions for explosive plant growth.


Best For: Automated hydroponic systems, master nutrient mixing arrays, gravity-fed sub-irrigation layouts, commercial greenhouse staging, and cultivators requiring a highly stable, portable fluid reservoir.

Choose Your Capacity Profile

Select the ideal SeaHawk capacity to complement your plant count, active layout footprint, or master mixing parameters:

Model Variant Volumetric Capacity Dimensions (Height x Diameter) Ideal System Application
Hydro Tank 100L 100 Litres 78cm H x 40cm Ø Boutique grow tents, individual multi-pot lines, or cloning stations.
Hydro Tank 200L 200 Litres 70cm H x 60cm Ø Standard indoor setups, hobby greenhouses, and everyday mixing loops.
Hydro Tank 250L 250 Litres 88cm H x 60cm Ø Mid-scale multi-pot modules and dedicated automated drip reservoirs.
Hydro Tank 380L 380 Litres 98cm H x 70cm Ø Large multi-row cultivation zones and heavy-fruiting crop blocks.
Hydro Tank 500L 500 Litres 98cm H x 80cm Ø Commercial facilities, extensive loops, and high-volume staging hubs.
Hydro Tank 1000L 1,000 Litres 88cm H x 120cm Ø Master facility water reserves, commercial scaling runs, and massive staging storage.

Key Features

  • Collapsible Space-Saving Design: Arrives flatpacked to effortlessly pass through tight doors, stairwells, or greenhouse aisles, and folds down completely flat when not in use to reclaim valuable floor space.
  • Sustains pH & Thermal Uniformity: Crafted from premium, light-blocking polymers that shield your water column from temperature spikes and light exposure, preventing extreme pH drifting and slowing the formation of algae.
  • Ultra-Tough Support Framework: Utilises heavy-duty vertical support legs that drop into structural pockets, anchoring the full fluid weight evenly across the base without buckling, flexing, or warping.
  • Pure, Plant-Safe Construction: Manufactured using high-grade, non-toxic, chemically inert materials that will not leach synthetic compounds or plasticizers into your pristine hydroponic feeds.
  • High-Quality Plumbing Integration: Outfitted with premium pre-installed threaded bulkhead ports, allowing clean, drip-free connections for low-point drainage taps, pump feeds, or high-level overflow lines.
  • Boundless Structural Adaptability: While purpose-built to withstand the demands of intense mineral or organic hydroponic regimes, its durable design makes it highly adaptable for alternative water storage storage protocols.

Product Specifications & Inclusions

  • Brand: SeaHawk
  • Product Category: Collapsible Flexible Water Storage Reservoir
  • Material Composition: High-Tensile, Tear-Resistant, UV-Stabilised Hydro-Polymer Blend
  • Frame System: Rigid, High-Load Vertical Support Pillars
  • Seams & Joints: High-Frequency Thermal Welded Leak-Proof Architecture
  • Chemical Compatibility: Fully compatible with aggressive mineral fertilizers, organic additives, and flushing correctors

Nursery Setup & Solution Management Tips

  • The absolute Level Floor Mandate: Before sliding the vertical structural legs into place and filling your SeaHawk Hydro Tank, ensure the floor area is 100% flat, swept entirely clean of sharp gravel or debris, and level. Filling a flexible reservoir on a steep slope causes the fluid mass to push unevenly against one side, placing unnecessary stress on the welded joints.
  • Securing Watertight Fittings: When threading your low-point drainage tap or inlet elbows into the pre-cut ports, make sure the rubber compression washers sit completely flush against either side of the flexible wall fabric. Hand-tighten firmly to secure a perfect seal—avoid heavy metal wrenches which can pinch or tear the washers.
  • Elevating for Gravity Fall: To generate an optimal fluid velocity down automated feeding lines or sub-irrigated tray networks, assemble your Hydro Tank on a clean, solid, elevated platform or structural timber pallet. Elevating the tank baseline by even 150–300mm immediately boosts static head pressure for down-line components.
  • End-of-Cycle Sanitation Routine: At the end of your harvest run, drain the tank completely. Wipe down the interior walls with warm water and a mild sterilising wash or diluted hydrogen peroxide solution to clear away any mineral salt crust or organic biofilms. Allow the tank to air-dry completely in a well-ventilated, shaded space before folding it away to protect the fabric during storage.

Ideal For (Uses)

  • Automated Crop Steering Systems: Acting as the centralized primary reservoir for distributing precisely mixed, stable nutrient solutions down to automated lines.
  • Commercial Facility Water Reserves: Scaling up facility storage capacities (especially with the 500L and 1000L models) to ensure a steady supply of clean, dechlorinated water is always staged and ready.
  • Restricted Space Staging: Overcoming the logistical challenges of urban indoor grow rooms, basement tents, or attic propagation spaces where bringing in rigid, oversized storage barrels is physically impossible.
Additional Information
Size

100L, 200L, 250L, 380L, 500L, 1000L

Oversize Item Delivery

Oversized Item Delivery Options

Oversized, heavy, and structural goods ship via specialist freight. Freight is calculated at checkout from estimated packaged volumetric or physical weight. Carrier depot audits may adjust the rate — if the increase exceeds 10%, we will contact you before processing.

Available options include:

✔ Delivery to your closest depot for pickup — default method
✔ Direct delivery — requires an operational forklift on site unless Tailgate Delivery has been specifically requested and quoted (contact us — this cannot be selected at checkout)
✔ Tailgate hydraulic lift delivery — must be specifically requested; contact us for a quote (not available as a checkout option; extra fees apply; required if you do not have a forklift)
✔ 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
  • Any carton or consignment over 25–30kg (or over 200cm) must be palletised
  • Without a specifically requested and paid Tailgate Delivery quote, palletised freight requires a forklift on site — otherwise the carrier will redirect to the nearest depot
  • Bulky and oversized items cannot be delivered to a PO Box — provide a physical street address
  • Failed deliveries, locked gates, unattended sites, or incorrect business/forklift declarations may incur carrier redelivery, demurrage, and restocking fees as set out in our Terms & Conditions

Business Delivery:

  • Selecting a business/commercial delivery rate warrants that the address has an operational forklift and certified operator during business hours
  • If the carrier cannot unload, the consignment may be redirected to a depot and secondary fees may apply
  • Additional fees may apply for failed delivery attempts due to lack of appropriate unloading equipment

See our Terms & Conditions (Article 8) for full freight and delivery rules.

Shipping & Lead Times

Important Note on Availability & Shipping

Our warehouse is a logistics hub, not a retail showroom. Listing a product online does not mean it is stored at our Thomastown warehouse — many lines ship from supplier hubs (split fulfilment may apply).

How lead times work:

  • Product page ETA: The Estimated Time of Arrival (ETA) / lead-time badge shown on the product page at checkout is the agreed delivery timeframe for that order under Australian Consumer Law.
  • Metro baselines: Advertised ETAs apply to standard metropolitan zones. Regional and remote addresses may take longer and may attract surcharges.
  • Peak seasons: Orders in March–May, August–October, EOFY (June), Black Friday/Cyber Monday (November), and Christmas/New Year (December–January) may automatically add a 2–4 week buffer beyond the product page ETA.
  • Supplier-dependent / backordered items: If stock is delayed, we will notify you with a revised ETA. You then have 7 days to accept the new timeframe or cancel for a full refund.
  • Adloheat: Custom-made products from Adloheat (Pakenham, VIC) may take 4–12 weeks depending on the order.

Full fulfilment, cancellation, and freight rules are in our Terms & Conditions.

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.

Price Match Guarantee

We Offer the Best Prices

We are committed to offering competitive market rates. If you find an identical, currently stocked product advertised at a lower price by an authorised Australian competitor, contact us before purchase and we will review your request.

Price Match Conditions:

  • The competitor must be a registered Australian business (active ABN) with a physical trading address or verified commercial presence in Australia
  • The item must be identical in brand, model, SKU, gauge, dimensions, and specifications
  • The lower price must be publicly advertised in AUD, currently active, and available for immediate purchase
  • Excludes liquidation, clearance, closeouts, damaged goods, and discontinued lines
  • Excludes overseas marketplaces and aggregators including Temu, AliExpress, eBay auction sellers, and Amazon third-party sellers
  • Excludes trade quotes, bulk discounts, and custom negotiated quotes not publicly visible
  • Requests must be made in writing before purchase

How to Request a Price Match:

Email [email protected] with a live link or official quote. We reserve sole discretion to verify and approve price match adjustments. See Article 6.7 of our Terms & Conditions.

Pricing Errors & 105% Store Credit

If a displayed price is incorrect due to a website error or an extraordinary supplier increase, we will contact you before processing. You may proceed at the corrected price, choose an alternative, or cancel for a full cash refund. A 105% store credit may be offered as a courtesy bonus at our sole discretion only. It is not an entitlement, and we may refuse it if we believe it is being abused or sought in bad faith. Full details: Terms & Conditions Article 6.1.

Still Unsure?

Book an appointment with one of our team members. We are here to assist you every step of the way.