GK-Organics Guanokalong Extract — Organic Liquid Nutrient Additive for Hydroponic Growing
Best for: Hydroponic growers wanting a clean organic supplement that won't clog systems or complicate feeding schedules
Our thoughts
This is where organic growing and hydroponic systems actually meet. Guanokalong Extract solves the problem most organic growers face — powder products clogging lines. Liquid, clear, no smell, simple dosing. One we recommend a lot for growers moving away from synthetics without wanting to rebuild their whole setup.
GK-Organics Guanokalong Extract is an organic liquid nutrient supplement derived from sustainably harvested bat guano. Unlike powder-based organic additives, this clear liquid extract integrates seamlessly into any hydroponic system — flood and drain, DWC, run-to-waste, or soil and coco — without the clogging problems you'd get from powder. It delivers macro- and micronutrients plus enzymes in a format that actually works for active hydroponic growing, making it one of the few genuinely system-friendly organic supplements available.
How it compares
In the organic hydroponic supplement category, Guanokalong Extract sits in a specific sweet spot.
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vs. powder organics: Liquid format won't clog emitters, drip lines, or flood tables — solves the biggest headache with organic systems
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vs. seabird guano: Bat guano has more balanced nutrient ratios; phosphorus profile suits flowering without excessive nitrogen
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vs. complete organic fertilisers: This is a supplement, not a complete feed — designed to integrate alongside existing nutrients, lowering commitment risk
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vs. synthetic bloom boosters: No synthetic salts, gradual nutrient release, lower leaf scorch risk, but requires more planning in feeding schedules
Usage guidance
Guanokalong Extract works across different growing setups, but how you use it depends on your system type and what else you're feeding with.
Hydroponic systems (DWC, flood and drain, run-to-waste)
Add 10ml per litre of water once per week as part of your regular feed. The liquid format means it won't block lines or settle in tanks. Run-to-waste systems benefit most from organic supplementation — you get the quality gains without nutrient salt buildup.
Soil and coco growing
Works well here too. Use the same 10ml per litre dosing during watering. Soil growers often use this to enhance finished product quality without switching their entire nutrient base.
Integration with existing nutrients
This is the key strength. Guanokalong Extract isn't a complete fertiliser — it's a supplement. You can run it alongside your regular nutrients from any manufacturer. During vegetative growth, you may need to add extra nitrogen separately. During flowering, consider adding potassium. The extract handles the phosphorus, enzymes, and micronutrients; you fill the gaps.
Don't combine with: Don't use this if you're already using Guanokalong Powder or pellets — you're duplicating and wasting money.
Technical specifications
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NPK Content: 2% nitrogen, 2% potassium, 0.5% phosphorus (100% organic, fully soluble)
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Format: Clear liquid extract (no sediment, no odour)
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System compatibility: Won't clog emitters, drip lines, or hydroponic equipment
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Dosage: 10ml per litre of water, applied once weekly
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Available sizes: 1 litre, 5 litres, 10 litres, 20 litres
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Source: Sustainably harvested rainforest bat guano, processed as liquid extract
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Composition: Macro- and micronutrients plus natural enzymes in liquid form
Who this is for
- Hydroponic growers wanting organic supplementation without powder hassle
- Growers transitioning away from synthetic nutrients but keeping existing systems
- DWC and flood-and-drain operators seeking clean organic additives
- Anyone running active hydroponic systems where clogging is a real problem with organic products
- Professional cultivators prioritising product quality and flavour enhancement over pure yield
- Outdoor and indoor growers wanting natural inputs without system modifications
Our take
This is organic growing for growers who actually run hydroponic systems, not for people trying to force powder supplements through drip lines. The fact it's liquid, clear, and doesn't smell makes it genuinely practical for active systems where most organic products fall apart. Dosing is straightforward — 10ml per litre once a week — and it integrates alongside whatever else you're feeding.
If you've wanted to add organic quality to hydroponic growing but haven't found a product that actually works with your equipment, this is worth picking up. Solves a real problem without making you rebuild your whole setup.
