GK-Organics Kalong Bloom - Organic Liquid Base Nutrient for the Flowering Stage
Best for: organic growers who want a vegan-friendly liquid bloom feed with a gentle, root-safe salt index.
Our thoughts
Kalong Bloom is a straightforward, genuinely organic bloom feed - no animal-derived inputs, and a low salt index that's kinder to roots than a lot of mineral-heavy bloom nutrients. It's a base feed, not a complete kit on its own, so pair it with GK-Organics Kalong Grow for the vegetative stage and Guanokalong Powder if you want to boost phosphorus levels.
GK-Organics Kalong Bloom, made by Dutch brand Guanokalong, is a liquid base nutrient formulated for the flowering stages of your grow. It's fully organic and vegan friendly, with an NPK ratio of 2.5-0-6, giving it a nitrogen and potassium profile suited to bloom without added phosphorus in the bottle itself.
Its low salt index is the main practical benefit for day-to-day feeding - a gentler salt load means less risk of root stress or nutrient lockout from overfeeding compared with harsher mineral bloom feeds, promoting healthier root development through the flowering period. Because it doesn't contain phosphorus, growers wanting a fuller macronutrient spread typically pair it with Guanokalong Powder to bring phosphorus levels up to an optimal range for flowering.
How it compares
Kalong Bloom sits in the organic liquid base nutrient category alongside established brands like BioBizz and Canna's Bio range.
- Versus BioBizz Bio-Bloom: both are certified organic liquid bloom feeds; BioBizz uses a sugar beet extract base, while Kalong Bloom's core ingredient is guano-derived.
- Versus Canna Bio Flores: Canna's Bio Flores is a vegetable-based organic bloom feed at a broadly similar dose rate; Kalong Bloom's lower salt index is aimed specifically at reducing root stress.
- Versus Plagron's Alga Bloom: Plagron's organic range is seaweed-based; Kalong Bloom's guano base gives a different nutrient profile, best suited to growers wanting to pair it with Guanokalong's own Powder additive.
All are genuine organic options - the choice comes down to which base ingredient and salt profile suits your feeding routine.
Usage guidance
Kalong Bloom is designed to be used alongside water at your normal feeding schedule during flowering.
Dosage
Follow the dose rate on the bottle for your feeding system and adjust gradually based on plant response, as with any organic liquid feed.
Pairing
Use GK-Organics Kalong Grow during the vegetative stage, switching to Kalong Bloom once flowering begins.
Boosting phosphorus
Add Guanokalong Powder if you want a fuller phosphorus level than Kalong Bloom provides on its own.
Technical specifications
- Manufacturer: Guanokalong (GK-Organics)
- Format: Liquid base nutrient
- Stage: Bloom / flowering
- NPK ratio: 2.5-0-6
- Certification: Fully organic, vegan friendly
- Salt index: Low, root-friendly
- Companion products: Kalong Grow (veg stage), Guanokalong Powder (added phosphorus)
Who this is for
- Organic growers wanting a vegan-friendly liquid bloom feed
- Growers concerned about salt buildup or root stress from mineral-heavy nutrients
- Anyone already using GK-Organics Kalong Grow who wants a matching bloom-stage feed
Best suited to growers running an organic feeding programme rather than a fully mineral-based one.
Our take
Kalong Bloom does what a genuine organic bloom base should - a clean nutrient profile with a gentle salt index, without overselling itself as a standalone complete feed. Pair it properly with Kalong Grow and Guanokalong Powder and it holds up well against the established organic brands.
One we sell a lot of for growers running an organic feeding programme. Worth picking up if you want straightforward, root-safe bloom feeding.
