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Metrop MR1 Growth Fertiliser 250 ml — BloomLED
€22.89
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Explosive vegetative growth, controlled pre-flower — Metrop MR1 delivers a balanced NPK plus magnesium right from week one of your veg cycle.
Hand-picked and recommended by BloomLED, a French growshop with 10+ years of expertise in indoor cultivation and horticultural LED lighting.
250 ml bottle · NPK + Mg · Soil / Hydro / Coco · 0.1–0.5 ml/L
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GROWTH FERTILISER
Metrop MR1 Growth Fertiliser: the concentrated formula trusted by indoor pros
Metrop MR1 is one of the most concentrated growth nutrients on the market. A single 250 ml bottle feeds dozens of plants throughout the entire vegetative stage — a must-have for serious indoor growers chasing vigorous root development and dense foliage before the flip to flower.
| Specification | Value |
|---|---|
| Brand | Metrop |
| Format | 250 ml bottle |
| Growth phase | Vegetative & pre-flower |
| Compatible media | Soil · Hydroponics · Coco fibre |
| Recommended dose | 0.1 to 0.5 ml / L of water |
| Composition | Balanced NPK + magnesium |
0.1–0.5ml per litre
250ml ultra-concentrate
NPK+MgBalanced formula
🌱 Slow-release ammoniacal nitrogen
Ammoniacal nitrogen feeds beneficial soil bacteria and releases nutrients gradually. The result: zero deficiencies, steady growth and deep green foliage week after week.
⚡ Explosive root multiplication
The phosphorus and potassium in MR1 trigger a dense root mass — the foundation for maximum nutrient uptake and a powerful kick-off into flowering.
🧪 Works across every substrate
Soil, hydroponics or coco fibre: MR1 fits your setup. Dilute 0.1 to 0.5 ml per litre of feed water, several times a week depending on substrate richness.
How do I correctly dose Metrop MR1?
Start gently at 0.1 ml per litre from day two of the veg cycle, then gradually ramp up to 0.5 ml/L as you approach pre-flower. On a rich substrate, one to three feeds per week is enough; on a poor substrate or in pure hydro, you can feed daily at the lower end of the range.
Is MR1 suitable for hydroponics and coco?Yes. MR1 is formulated for the three main indoor growing methods: soil, hydroponics and coco fibre. On inert or poor substrates, keep a consistent dose at every feed. With coco, monitor your EC and stay within the 1.2–1.8 mS/cm window through peak veg.
250 ml of MR1 = weeks of perfectly fuelled vegetative growth, trusted by demanding growers and endorsed by the BloomLED team, indoor cultivation specialists for over 10 years.
✓ Designed in France✓ 10+ years specialist✓ Fast delivery✓ Expert advice
ENG-METROP-MR1-250
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Explosive vegetative growth, controlled pre-flower — Metrop MR1 delivers a balanced NPK plus magnesium right from week one of your veg cycle.
Hand-picked and recommended by BloomLED, a French growshop with 10+ years of expertise in indoor cultivation and horticultural LED lighting.
250 ml bottle · NPK + Mg · Soil / Hydro / Coco · 0.1–0.5 ml/L