Feeding Guide
How to Use Newts
A straightforward two-part system designed for professional growers. Follow these guidelines for consistent results across veg and flower.
Quick Start
Getting Started in 4 Steps
Start with clean water
Use filtered or RO water when possible. Allow water to reach room temperature before mixing nutrients.
Add Base A, then Base B
Always add Base A first, mix thoroughly, then add Base B. Never combine concentrates before diluting in water.
Add stage-specific products
Use Bloom during flower. Add Swell in the final weeks. Supplement with Cal if your water or media requires additional calcium.
Check pH and feed
Adjust pH to 5.5–6.5 before irrigating. Monitor runoff EC and adjust strength based on plant response.
Feeding Program
Recommended Weekly Schedule
Start at the lower end of the range and increase based on plant size, media, and environmental conditions. Always measure EC after mixing.
Growth Stage
Base A
Base B
Bloom
Swell
Cal
0.5–1.0 ml/gal
0.5–1.0 ml/gal
—
—
As needed
2–3 ml/gal
2–3 ml/gal
—
—
As needed
Late Veg
4–6 ml/gal
4–6 ml/gal
—
—
As needed
Early Flower
4–6 ml/gal
3–4 ml/gal
2–4 ml/gal
—
As needed
Mid Flower
—
As needed
Mid Flower
As needed
Rates are general guidelines. Consult your cultivation manager or contact Newts for cultivar-specific recommendations.
Best Practices
Mixing & Application Tips
Mixing order matters
Follow this sequence when building your reservoir:
- Water
- Base A — mix completely
- Base B — mix completely
- Bloom (flower only)
- Swell (finish phase)
- Cal (if required)
- pH adjust last
pH & water quality
Maintaining a pH range of 5.5 to 6.5 is crucial for plants to absorb essential nutrients efficiently. Test pH after all products are added and before every feed.
Powder vs. liquid
Powder: Dissolve fully before adding to the reservoir. Liquid: Pour measured amounts directly — see our Liquid Formula page for available sizes.
Commercial Cal
Use Commercial Cal for scale operations or when targeting elevated calcium levels. Monitor EC closely when introducing any new additive.
FAQs
Common Questions
Can I use Base A without Base B?
No. Base A and Base B are designed to work together as a two-part system. Using one without the other will result in imbalanced nutrition.
When should I start using Bloom?
Introduce Bloom at the onset of flower, typically when you change your photoperiod or when pre-flower formation begins. Increase rates through mid-flower, then taper Base B in late flower while maintaining Bloom and adding Swell.
How is Swell different from Bloom?
Bloom is a PK booster used throughout flowering to support development and yield. Swell is a premium flower enhancer used in the final weeks to improve density, terpene expression, and overall finish quality.
Do I need Cal if I use Base A?
Base A provides essential calcium, but some water sources and growing conditions require additional supplementation. Test your runoff and consult with your grow team to determine if Cal is needed.
Can I combine Newts with other nutrient lines?
Newts is formulated as a complete system. Mixing with other lines may cause precipitation or nutrient antagonism. Contact us before combining with third-party products.
Need help dialing in your feed?
View our feeding guide for mixing order, weekly rates, and pH targets.
