{"product_id":"seahawk-hydro-tank-series-flexible-collapsible-nutrient-water-reservoirs","title":"SeaHawk - Hydro Tank Series – Flexible Collapsible Nutrient \u0026 Water Reservoirs","description":"\u003csection\u003e\n\u003ch3\u003eSeaHawk - Hydro Tank Series – Flexible Collapsible Nutrient \u0026amp; Water Reservoirs\u003c\/h3\u003e\n\u003cp\u003eAchieve 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.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e Automated hydroponic systems, master nutrient mixing arrays, gravity-fed sub-irrigation layouts, commercial greenhouse staging, and cultivators requiring a highly stable, portable fluid reservoir.\u003c\/p\u003e\n\u003ch3\u003eChoose Your Capacity Profile\u003c\/h3\u003e\n\u003cp\u003eSelect the ideal SeaHawk capacity to complement your plant count, active layout footprint, or master mixing parameters:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Variant\u003c\/th\u003e\n\u003cth\u003eVolumetric Capacity\u003c\/th\u003e\n\u003cth\u003eDimensions (Height x Diameter)\u003c\/th\u003e\n\u003cth\u003eIdeal System Application\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHydro Tank 100L\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 Litres\u003c\/td\u003e\n\u003ctd\u003e78cm H x 40cm Ø\u003c\/td\u003e\n\u003ctd\u003eBoutique grow tents, individual multi-pot lines, or cloning stations.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHydro Tank 200L\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 Litres\u003c\/td\u003e\n\u003ctd\u003e70cm H x 60cm Ø\u003c\/td\u003e\n\u003ctd\u003eStandard indoor setups, hobby greenhouses, and everyday mixing loops.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHydro Tank 250L\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 Litres\u003c\/td\u003e\n\u003ctd\u003e88cm H x 60cm Ø\u003c\/td\u003e\n\u003ctd\u003eMid-scale multi-pot modules and dedicated automated drip reservoirs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHydro Tank 380L\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e380 Litres\u003c\/td\u003e\n\u003ctd\u003e98cm H x 70cm Ø\u003c\/td\u003e\n\u003ctd\u003eLarge multi-row cultivation zones and heavy-fruiting crop blocks.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHydro Tank 500L\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500 Litres\u003c\/td\u003e\n\u003ctd\u003e98cm H x 80cm Ø\u003c\/td\u003e\n\u003ctd\u003eCommercial facilities, extensive loops, and high-volume staging hubs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHydro Tank 1000L\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,000 Litres\u003c\/td\u003e\n\u003ctd\u003e88cm H x 120cm Ø\u003c\/td\u003e\n\u003ctd\u003eMaster facility water reserves, commercial scaling runs, and massive staging storage.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollapsible Space-Saving Design:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSustains pH \u0026amp; Thermal Uniformity:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Tough Support Framework:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePure, Plant-Safe Construction:\u003c\/strong\u003e Manufactured using high-grade, non-toxic, chemically inert materials that will not leach synthetic compounds or plasticizers into your pristine hydroponic feeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Quality Plumbing Integration:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoundless Structural Adaptability:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Specifications \u0026amp; Inclusions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e SeaHawk\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Collapsible Flexible Water Storage Reservoir\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Composition:\u003c\/strong\u003e High-Tensile, Tear-Resistant, UV-Stabilised Hydro-Polymer Blend\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame System:\u003c\/strong\u003e Rigid, High-Load Vertical Support Pillars\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeams \u0026amp; Joints:\u003c\/strong\u003e High-Frequency Thermal Welded Leak-Proof Architecture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Compatibility:\u003c\/strong\u003e Fully compatible with aggressive mineral fertilizers, organic additives, and flushing correctors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNursery Setup \u0026amp; Solution Management Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe absolute Level Floor Mandate:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecuring Watertight Fittings:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElevating for Gravity Fall:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd-of-Cycle Sanitation Routine:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal For (Uses)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomated Crop Steering Systems:\u003c\/strong\u003e Acting as the centralized primary reservoir for distributing precisely mixed, stable nutrient solutions down to automated lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial Facility Water Reserves:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestricted Space Staging:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"Holland Forge","offers":[{"title":"100L","offer_id":48424641790052,"sku":"4303","price":66.9,"currency_code":"AUD","in_stock":true},{"title":"200L","offer_id":48424641822820,"sku":"4304","price":85.9,"currency_code":"AUD","in_stock":true},{"title":"250L","offer_id":48424641855588,"sku":"4305","price":95.9,"currency_code":"AUD","in_stock":true},{"title":"380L","offer_id":48424641888356,"sku":"4306","price":138.9,"currency_code":"AUD","in_stock":true},{"title":"500L","offer_id":48424641921124,"sku":"4307","price":147.9,"currency_code":"AUD","in_stock":true},{"title":"1000L","offer_id":48424641953892,"sku":"4309","price":284.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/6487\/0244\/files\/hydro-tank-100-litrel.webp?v=1783049140","url":"https:\/\/www.greenhousepolytunnels.com.au\/products\/seahawk-hydro-tank-series-flexible-collapsible-nutrient-water-reservoirs","provider":"Greenhouse \u0026 Polytunnels","version":"1.0","type":"link"}