Product description
Matrix Xtreme 500 ml – MTX bloom booster for compact flowers in a grow tent
Want to try the Matrix MTX bloom booster in a smaller setup first? The 500 ml bottle covers a single grow tent and lets you see what Xtreme (also sold as Xtreme Boost) does before moving up a size. Made by Fenix MTX in Germany, it's a flowering stimulator that supports flower formation, for compact, dense flowers and fruits.
How it fits in
Xtreme is designed to work alongside Matrix MTX base nutrition, so it's at its best when the rest of your schedule is MTX too. That's also why it's included in the Matrix starter kits: if you've used one of those, you already know it.
Dosing in a single tent
Shake the bottle and dose according to the Matrix MTX feeding schedule during flower. For a tent mixed by the watering can, a small syringe or dosing cup keeps it accurate. Check EC and pH of the nutrient solution after mixing, because adding a booster raises EC a little.
Good to know
Looking for more flower sites early in bloom? Fenix MTX pairs the MTX range with Matrix Max Force, and finishes with Matrix Bloom in the last four weeks.
Specifications
- Contents: 500 ml
- Phase: flower
- Form: liquid
Xtreme also comes in 100 ml, 250 ml, 1 L and 5 L, so you can scale up once it earns a permanent spot in your schedule.

