What is Professor’s Nutrients Carbo Boost and what does it do?
Carbo Boost is a plant-available carbohydrate additive that supports energy production, essential oil output, and finishing quality in late flower. It’s not a base nutrient—it’s a clean, consistent way to feed both plants and microbes, often used instead of molasses in hydro or coco setups.
When should I use Professor’s Nutrients Carbo Boost during the grow cycle?
Carbo Boost is most effective in the final 3 weeks of flowering when plants are pushing aroma, flavour, and oil production. It’s not usually needed in veg. For short-flowering plants, start earlier based on actual bloom time. Most growers stop it right before flush.
Can I use Carbo Boost in coco, hydroponics, soil, or living soil?
Yes—Carbo Boost works in all major grow mediums including hydro, coco, soil, and living soil. Just adjust your use: in living soil, go lighter; in hydro, keep your reservoir clean. It’s also safe for fruiting plants like tomatoes and chillies.
How much Carbo Boost should I use, and how do I mix it?
Use 2ml per litre of water. Add Carbo Boost to water first, stir, then add base nutrients and other additives. Always check and adjust your final EC and pH before feeding. If your feed is already strong, reduce your base slightly to keep balance.
Can I use Carbo Boost with PK boosters, Cal-Mag, or silica?
Yes—Carbo Boost plays well with most additives. Just follow a good mixing order (silica first, Carbo Boost after) and avoid stacking products that push your EC too high late flower.
Will Carbo Boost cause slime, gunk, or clogging in my system?
It can if your system runs hot, lacks oxygen, or isn’t cleaned regularly. Keep your reservoir cool, aerated, and change it weekly to avoid biofilm. In clean systems, it rarely causes clogging or issues.
Can I use Carbo Boost in a sterile hydro or with beneficial microbes?
Yes, but carbs in sterile systems can behave oddly—monitor closely. It works well with beneficials if oxygen is high and conditions are clean. Like any sugar source, overuse in wet mediums may attract fungus gnats if drainage is poor.
Does Carbo Boost increase flavour, aroma, or trichome production?
That’s the main goal. By supporting metabolic output late flower, it can help boost essential oil production and finishing quality. Genetics, lighting, environment, and post-harvest handling still matter most for results.
Will Carbo Boost fix nutrient issues or improve stressed plants?
Not directly. It supports energy and microbial function, but won’t correct lockout, bad pH, or other root issues. Overuse can cause imbalance, especially if you stack additives without adjusting your base nutrients.
What’s the easiest way to run Carbo Boost without issues?
Add 2ml/L during the last 3 weeks of flower, keep your medium or reservoir clean, feed to runoff if using coco, and monitor EC/pH. Avoid mixing it into dirty or stagnant water, and don’t overfeed.
How much Carbo Boost do I need for 10L or 100L tanks?
At 2ml per litre, you’ll use 20ml for 10L or 200ml for 100L. One litre of Carbo Boost lasts a while for small grows; larger systems may prefer the 5L for value.
Is Professor’s Nutrients Carbo Boost available in different sizes?
Yes, it’s commonly sold in 1L and 5L bottles. Go with 1L if you’re trialling or running a small grow, or 5L if you feed multiple systems or run consistent bloom cycles.
How should I store Carbo Boost, and does it expire?
Store sealed in a cool, dry place out of sunlight. Always shake before use. It’s best used within a reasonable timeframe—discard if it smells off, separates badly, or grows biofilm that won’t remix.
Is Carbo Boost safe to handle and is it organic?
Yes—it’s safe when handled properly. Avoid eye contact, wash hands after use, and keep out of reach of kids and pets. It contains plant-usable carbohydrates, but isn’t certified organic—check with your certifier if needed.
