Athena Feed Chart — Modified Pro & Blended
Athena’s current Modified feed schedules — Pro and Blended with the new Proper terpene booster and Fade — week by week from clone through flower, plus the standard programs. These are Athena’s published schedules, reproduced here so you can read them on a phone in a grow room instead of pinching a PDF. The original sheets are linked below.
Not sure which line you should be running? See the Pro Line vs Blended comparison →
Modified Pro program — with Proper & Fade
All measurements are mL per gallon, based on a 2 lb per gallon stock tank concentrate.
| Product | Clone (pre-soak & feed) | Veg (all weeks) | Flower W1 | Flower W2 | Flower W3 | Flower W4 | Flower W5 | Flower W6 | Flower W7 | Flower W8 | Flower W9 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pro Grow | · | 32 | · | · | · | · | · | · | · | · | · |
| Proper | · | · | · | · | · | 9 | 9 | 9 | 5 | 5 | · |
| Pro Bloom | 20 | · | 32 | 32 | 32 | 23 | 23 | 23 | 23 | 23 | 26 |
| Pro Core | 12 | 19 | 19 | 19 | 19 | 14 | 14 | 14 | 14 | 14 | swap |
| Fade | · | · | · | · | · | · | · | · | · | · | 14 |
| Cleanse | 1 | 5-13 | 5-13 | 5-13 | 5-13 | 5-13 | 5-13 | 5-13 | 5-13 | 5-13 | 5-13 |
| Target EC | 2.0 | 3.0 | 3.0 | 3.0 | 3.0 | 2.6 | 2.6 | 2.6 | 2.4 | 2.4 | 2.4 |
| PPM (500 scale) | 1000 | 1500 | 1500 | 1500 | 1500 | 1300 | 1300 | 1300 | 1200 | 1200 | 1200 |
Balance is recommended for batch tank mixing and Dosatron — do not use with NetaFlex. Pro Balance is recommended for advanced irrigation systems like NetaFlex; either is used as pH up. In flower week 9, swap Pro Core for Fade and verify pH. pH 5.6 for clones, 5.8–6.2 through veg and flower, 6.0–6.4 in week 9. Veg soak: Pro Grow 32, Pro Core 19, Cleanse 5–13 mL/gal at EC 3.0. Flush: RO + Cleanse 10 mL/gal to EC under 0.1 — coco the last 3 days, rockwool the last day. For best accuracy Athena recommends mixing from a stock tank (Pro Concentrate Procedure).
Modified Blended program — with Proper & Fade
All measurements are mL per gallon.
| Product | Clone pre-soak | Clone feed | Veg W1 | Veg W2 | Flower W1 | Flower W2 | Flower W3 | Flower W4 | Flower W5 | Flower W6 | Flower W7 | Flower W8 | Flower W9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Proper | · | · | · | · | · | · | 3 | 4 | 6 | 7 | 8 | 4 | 4 |
| Grow B | · | · | 11 | 11 | · | · | · | · | · | · | · | · | · |
| Grow A | · | · | 11 | 11 | · | · | · | · | · | · | · | · | · |
| Bloom B | 5 | 10 | · | · | 12 | 12 | 12 | 12 | 10 | 9 | 6 | 6 | 6 |
| Bloom A | 5 | 10 | · | · | 12 | 12 | 12 | 12 | 10 | 9 | 6 | · | · |
| CaMg | · | · | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | · | · |
| Fade | · | · | · | · | · | · | · | · | · | · | · | 12 | 12 |
| Cleanse | 1 | 1 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 |
| Target EC | 0.9 | 2.0 | 2.1 | 2.1 | 2.3 | 2.3 | 2.5 | 2.5 | 2.3 | 2.2 | 1.8 | 1.8 | 1.8 |
| PPM (500 scale) | 430 | 1000 | 1050 | 1050 | 1150 | 1150 | 1250 | 1250 | 1150 | 1100 | 900 | 900 | 900 |
Balance is used as pH up — recommended for batch tank mixing and Dosatron, do not use with NetaFlex. If using Blended Balance, do not use an additional potassium silicate product. pH 5.6 for clones, 5.8–6.2 through veg and flower, 6.0–6.4 in the final week. Veg soak: Grow B 11, Grow A 11, CaMg 4, Cleanse 2.5 mL/gal at EC 2.1. Flush: RO + Cleanse 10 mL/gal to EC under 0.1 — coco the last 3 days, rockwool the last day.
New to Proper? See Athena Proper — the synganic terpene booster these schedules are built around. Running without Proper? The standard programs are below.
Standard Blended Line program with fade
All measurements are mL per gallon.
| Product | Pre-soak | Feed | Veg W1 | Veg W2 | Veg W3 | Veg W4 | Flower W1 | Flower W2 | Flower W3 | Flower W4 | Flower W5 | Flower W6 | Flower W7 | Flower W8 | Flower W9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grow B | · | · | 11 | 11 | 11 | 11 | · | · | · | · | · | · | · | · | · |
| Grow A | · | · | 11 | 11 | 11 | 11 | · | · | · | · | · | · | · | · | · |
| Bloom B | 5 | 10 | · | · | · | · | 12 | 12 | 12 | 12 | 10 | 9 | 5 | · | · |
| Bloom A | 5 | 10 | · | · | · | · | 12 | 12 | 12 | 12 | 10 | 9 | 5 | · | · |
| PK | · | · | · | · | · | · | · | · | 4 | 6 | 9 | 10 | 12 | 12 | 12 |
| CaMg | · | · | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | 3-5 | · | · |
| Fade | · | · | · | · | · | · | · | · | · | · | · | · | · | 12 | 12 |
| Cleanse | 1 | 1 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 | 2-5 |
| Target EC | 0.9 | 1.7 | 2.1 | 2.1 | 2.1 | 2.1 | 2.3 | 2.3 | 2.5 | 2.6 | 2.4 | 2.3 | 1.7 | 1.7 | 1.7 |
Balance is used as pH up. Recommended for batch tank mixing and Dosatron — do not use with NetaFlex. If using Blended Balance, do not use an additional potassium silicate product.
Standard Pro Line program with fade (by weight)
All measurements are grams per gallon (Cleanse & Fade are mL per gallon).
| Product | Pre-soak | Feed | Veg W1 | Veg W2 | Veg W3 | Veg W4 | Flower W1 | Flower W2 | Flower W3 | Flower W4 | Flower W5 | Flower W6 | Flower W7 | Flower W8 | Flower W9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pro Grow | · | · | 7.7 | 7.7 | 7.7 | 7.7 | · | · | · | · | · | · | · | · | · |
| Pro Bloom | 4.9 | 4.9 | · | · | · | · | 7.7 | 7.7 | 7.7 | 7.7 | 7.7 | 7.7 | 7.7 | 7.7 | 7.7 |
| Pro Core | 2.9 | 2.9 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6* | swap | swap |
| Fade | · | · | · | · | · | · | · | · | · | · | · | · | · | 19 | 19 |
Balance is used as pH up and is recommended for batch tank mixing and Dosatron — do not use with NetaFlex. Pro Balance is recommended for advanced irrigation systems like NetaFlex. Swap Pro Core for Fade in weeks 8–9 of flower; this is cultivar dependent, and a resilient cultivar can take Fade from week 7.
Download the original sheets
Feed chart questions
What is the Athena Modified feed schedule?
Modified is Athena’s current program with its two Modifiers built in: Proper, a synganic terpene booster run from mid flower, and Fade, the nitrogen-free finisher for the last week or two. There is a Modified Pro program and a Modified Blended program; both adjust the base rates once Proper comes in.
When does Proper go in on the Athena feed chart?
On Modified Pro, Proper runs at 9 mL per gallon in flower weeks 4–6 and 5 mL per gallon in weeks 7–8. On Modified Blended it starts at 3 mL per gallon in week 3, rises to 8 mL in week 7, then 4 mL in weeks 8–9.
What EC should I run on the Athena Blended feed chart?
Athena’s Blended program with fade targets EC 0.9 at pre-soak and 1.7 at first feed, 2.1 through veg, rising to 2.3–2.6 across early and mid flower, then tapering to 1.7 for the last three weeks.
Is the Athena feed chart in mL or grams?
Blended is measured in mL per gallon throughout. Pro Line is grams per gallon because it is a dry soluble, though Cleanse and Fade remain mL per gallon in both programs.
When do I switch Athena Pro Core to Fade?
Athena recommends swapping Pro Core for Fade in weeks 8–9 of flower. It is cultivar dependent — if the cultivar shows resiliency, Fade at 19 mL per gallon can start from week 7.
Can I use Athena Balance with NetaFlex?
No. Athena recommends Balance for batch tank mixing and Dosatron, and specifically says not to use it with NetaFlex. For advanced irrigation systems like NetaFlex, Pro Balance is the one to use.
Do I need a separate potassium silicate with Athena Blended?
No. If you are running Blended Balance, Athena says not to add an additional potassium silicate product.
Running Athena at commercial scale?
We stock the full Athena range including bulk formats — 5 gal, 55 gal drums and 275 gal totes — so a facility can order a season at a time instead of by the case.