Canna Hydro Vega A & B — Professional Two-Part Grow Nutrient for Inert Systems
Best for: Hydroponic growers using run-to-waste systems who want precise nutrient control and pH stability without the fuss
Our thoughts
Canna Hydro Vega is one of the few two-part nutrient solutions that actually lives up to the hype. The pH stability alone sets it apart—you won't be constantly tweaking your reservoir. Proper professional-grade chelates, properly concentrated, and built for growers who understand that precision pays off.
Canna Hydro Vega A & B is a two-component liquid nutrient specifically formulated for the vegetative growth phase on inert substrates like rock wool and clay pellets. It's designed for run-to-waste hydroponic systems where you're draining excess nutrient solution rather than recirculating. The two-part format gives you control over nitrogen and trace elements without the complexity of three-part systems, and it's formulated for hard tap water (soft water version available separately). Simple mixing, fast absorption, and built-in pH stability make this a go-to choice for serious hobbyists and semi-commercial growers.
How it compares
Canna Hydro Vega sits between budget one-part nutrients and complex three-part systems.
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vs. one-part nutrients: More control over growth nutrients without risking over-nitrogen in flowering phases
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vs. three-part systems (like General Hydroponics Flora): Simpler mixing and dosing, still gives you precision where it matters most
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vs. budget alternatives: Professional chelates and immediate nutrient availability; highly concentrated, so you get more growing for less bottle
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pH stability advantage: Built-in stabilisers mean less reservoir tweaking than most competitors
Usage guidance
Mixing & dosing
Add Hydro Vega A to your reservoir first, stir well, then add Hydro Vega B. Never mix A and B directly—they'll precipitate and become unusable. Standard dilution is 400ml A and 400ml B per 100 litres of water (1:250 ratio). This produces an EC of 1.5–2.4 mS/cm, depending on your tap water hardness.
Run-to-waste systems
Drain 10–20% of solution daily or flush weekly with plain water. This keeps salts in check and prevents nutrient lockout.
Feeding schedule
Use Hydro Vega throughout the entire vegetative phase. When flowering starts, run it for the first three weeks alongside Canna Hydro Flores, then switch to Flores only. Drip feed 1–3 times daily depending on your setup and plant size.
Reservoir management
Top off with plain water between nutrient changes to keep levels consistent without over-concentrating. Most growers change their full reservoir every 1–2 weeks.
Technical specifications
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Type: Two-component liquid nutrient concentrate
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NPK ratio: 6-2-8 (optimised for hard water)
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Application: Vegetative growth phase only
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Substrate compatibility: Rock wool, clay pellets, hydroton, and other inert media
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System type: Run-to-waste hydroponic systems
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Dosage: 4 ml/L (400ml A + 400ml B per 100L water)
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Target EC: 1.5–2.4 mS/cm (solution + water EC combined)
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Key features: EDDHA iron chelate, pH stabilisers, immediately soluble
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Storage: Dark, frost-proof location (UV breaks down iron chelates)
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Available sizes: 1L, 5L, 10L bottles (A and B sold separately)
Who this is for
- Hydroponic growers with run-to-waste or open systems
- Anyone growing on rock wool or inert media who wants precision control
- Growers frustrated with constant pH tweaking (this solves that)
- Experienced hobbyists and semi-commercial operations where yield matters
- Growers using hard tap water (soft water version available if you're on a soft water supply)
Our take
This is professional-grade nutrient at a price that actually makes sense for serious growing. The two-part format hits the sweet spot—more control than one-part, simpler than three-part, and the pH stability is genuinely useful rather than marketing guff. If you're running a hydroponic system on inert media, this is worth picking up. Does exactly what it should, day in, day out.
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