What is Bio Diesel Crystal Clear and what does it do?
Bio Diesel Crystal Clear is a flushing additive designed to remove bonded mineral salts from coco and peat mixes. It helps clear nutrient pathways, reduce lockout risk, and support a cleaner, sweeter harvest by unbinding salts that plain water alone may not effectively remove.
How do I use Bio Diesel Crystal Clear for final flushing?
Use Bio Diesel Crystal Clear at 5 mL per litre during the last 7 days before harvest. Apply it 2–3 times that week, then finish with plain water for a clean run-out and smoother final product. No need to adjust pH unless your grow style demands strict control.
Can I use Bio Diesel Crystal Clear mid-grow to fix salt issues?
Yes—Bio Diesel Crystal Clear can help flush built-up salts mid-cycle, especially in coco. If runoff EC is climbing or plants seem blocked, flush with Crystal Clear, then follow up with fresh, balanced nutrients within 24 hours.
Does Bio Diesel Crystal Clear improve taste, smell, and finish?
Yes—many growers report enhanced flavour, aroma, and smoother smoke when using Bio Diesel Crystal Clear. It contains complex sugars that support higher Brix, better terpene expression, and stronger colour fade near harvest.
What types of growing media is Bio Diesel Crystal Clear suitable for?
It’s designed for coco fibre and peat-based mixes but also works in coco-perlite and bottom-fed systems like autopots. It's not ideal for pure hydro (like DWC), and less essential in true organic soil unless you're feeding salts.
What’s the correct dose and mixing order for Bio Diesel Crystal Clear?
Use 5 mL per litre of water. Shake the bottle well before use. Fill with water, add Bio Diesel Crystal Clear, mix thoroughly, then apply. Don’t add other nutrients into the flush mix, and skip pH adjustment unless needed for your setup.
Can I use Bio Diesel Crystal Clear with enzymes or microbes?
Yes—it's generally safe with enzymes and beneficial microbes, but avoid over-flushing if you’re running a living media. Don’t stack it with PK boosters; it’s a flush tool, not a feeding additive.
Does Bio Diesel Crystal Clear change EC or runoff readings?
It can. As it unbinds salts from the medium, you may see a temporary spike in runoff EC. That’s normal—keep flushing and avoid re-feeding heavily until levels stabilize.
Will Bio Diesel Crystal Clear clog irrigation lines or smell?
It mixes cleanly and rarely causes clogs if your system is well-maintained. It has a mild nutrient-sweet smell due to the sugars inside. Avoid letting mixed solution sit too long in warm reservoirs.
How should I store Bio Diesel Crystal Clear?
Store sealed in a cool, dark place. Don’t freeze it, and don’t leave it exposed to heat. Always shake before use to ensure even distribution of ingredients.
Can I use tap or RO water with Bio Diesel Crystal Clear?
Yes—both are fine. RO water is often preferred for flushing due to its low mineral content, which helps draw out more bonded salts from the medium.
Is Bio Diesel Crystal Clear safe for all flowering and fruiting plants?
Yes—it’s commonly used on crops like tomatoes, chillies, and other salt-fed flowering plants. Just follow proper timing and avoid using it like a base nutrient.
What mistakes should I avoid with Bio Diesel Crystal Clear?
Avoid flushing with Crystal Clear, then immediately hitting plants with heavy feeds. Also, if it “does nothing,” the issue may not be salt-related—check your pH, root health, and environment.
Does Bio Diesel Crystal Clear help reduce water use during flushing?
Yes—by helping unbind salts, Bio Diesel Crystal Clear allows for more efficient flushing, so you often use less water compared to plain-water flushes alone.
What size of Bio Diesel Crystal Clear should I buy?
250 mL suits small grows or occasional use. 1 L is ideal for regular coco growers, and 5 L is best value for larger grows or multiple rooms using flush routines often.
