Reply "if I follow your suggestion for all of these, i think the ppm/ec would be ridiculously high, wouldn't you"
GROK:
You’re absolutely right to raise this concern. Adding all the nutrients and additives in the
Athena Pro Line plan with cross-brand additions could indeed push the PPM/EC (parts per million/electrical conductivity) to excessively high levels in your 45-gallon RDWC system, potentially causing nutrient burn, lockout, or plant stress, especially in a high-performance setup like yours (1500 ppm CO2, 1300-1500 µmol/m²/s PPFD). Let’s analyze the current plan, calculate the approximate PPM contributions of each product, and adjust the lineup to maintain a safe PPM range for your cannabis plants, ensuring optimal growth and quality without overloading the system. We’ll aim for a balanced PPM range suitable for RDWC, considering your transition to
Athena for your next grow (post-harvest, mid-May 2025), with a $600 budget, ordering from Amazon.
Let’s re-evaluate the nutrient plan for your 45-gallon RDWC cannabis grow, focusing on the PPM/EC levels using the
700 scale (1 EC = 700 PPM, also known as the Hanna scale) instead of the 500 scale, to ensure the total PPM remains within safe ranges for your transition to the
Athena Pro Line for your next grow (post-harvest, mid-May 2025). You’re in a high-performance setup (1500 ppm CO2, reducing to 900 ppm by May 4; 1300-1500 µmol/m²/s PPFD), aiming for premium quality, with a $600 budget, ordering from Amazon. I’ll recalculate the PPM contributions of each product, adjust the lineup to avoid excessively high PPM levels, and ensure the plan aligns with your quality goals (terpene production, bud density, plant health) in RDWC, using hypochlorous acid (no microbes).
Current Nutrient Plan Recap ($600 Budget, 10lb Sizes)
Here’s the full list of products from the previous plan, with
Hygrozyme and microbial products already removed:
- Athena Pro Core (10lb): $65 – 3 g/gallon (135 g per 45-gallon fill).
- Athena Pro Grow (10lb): $65 – 4 g/gallon (180 g per fill, veg stage).
- Athena Pro Bloom (10lb): $65 – 4 g/gallon (180 g per fill, flowering stage).
- Athena Fade (1 gallon): $45 – 12 mL/gallon (540 mL per fill, last 2 weeks).
- Athena Balance (1 gallon): $45 – 3 mL/gallon (135 mL per fill).
- Athena Stack (16 oz): $75 – 1 mL/gallon (45 mL per fill).
- Athena CaMg (1 gallon): $30 – 2 mL/gallon (90 mL per fill).
- Athena PK (1 gallon): $45 – 4 mL/gallon (180 mL per fill, weeks 3-5 of flowering).
- Botanicare Hydroplex (1 gallon): $40 – 0.5 mL/gallon (22.5 mL per fill).
- Terpinator (1 quart): $25 – 5 mL/gallon (225 mL per fill, weeks 3-7 of flowering).
- Mad Farmer M.O.A.B. (10 oz): $15 – 1 g/gallon (45 g per fill, last 1-2 weeks of flowering).
- Dyna-Gro Pro-TeKt (1 quart): $20 – 1 mL/gallon (45 mL per fill).
- Cutting Edge Solutions Sugaree (1 quart): $25 – 2 mL/gallon (90 mL per fill, flowering).
- BioAg Ful-Power (1 quart): $30 – 2 mL/gallon (90 mL per fill).
- FoxFarm Kangaroots (1 pint): $20 – 2 mL/gallon (90 mL per fill, veg and early flowering).
- General Hydroponics Diamond Nectar (1 quart): $20 – 2 mL/gallon (90 mL per fill).
- Nectar for the Gods Herculean Harvest (1 quart): $20 – 2 mL/gallon (90 mL per fill, flowering).
- Future Harvest Ton-O-Bud (250 g): $20 – 1 g/gallon (45 g per fill, last 1-2 weeks of flowering).
- Total: $595
Estimating PPM Contributions (700 Scale)
We’ll calculate the PPM contributions on the 700 scale (1 EC = 700 PPM), focusing on
vegetative and
peak flowering (weeks 3-5) stages, and the
final weeks separately. Since exact PPM contributions depend on product formulations, I’ll use typical values based on manufacturer guidelines, hydroponic standards, and grower reports (e.g., from THCFarmer and GrowDiaries), converting from the 500 scale used previously by multiplying by 1.4 (700/500).
Vegetative Stage PPM Estimate (700 Scale)
In veg, you’ll use:
- Athena Pro Core: 3 g/gallon. On the 500 scale, this was ~400-450 PPM; on the 700 scale, ~560-630 PPM.
- Athena Pro Grow: 4 g/gallon. On the 500 scale, ~500-550 PPM; on the 700 scale, ~700-770 PPM.
- Athena CaMg: 2 mL/gallon. On the 500 scale, ~50-70 PPM; on the 700 scale, ~70-98 PPM.
- Athena Balance: 3 mL/gallon. On the 500 scale, ~20-30 PPM; on the 700 scale, ~28-42 PPM.
- Athena Stack: 1 mL/gallon. On the 500 scale, ~10-20 PPM; on the 700 scale, ~14-28 PPM.
- Botanicare Hydroplex: 0.5 mL/gallon. On the 500 scale, ~10-15 PPM; on the 700 scale, ~14-21 PPM.
- Dyna-Gro Pro-TeKt: 1 mL/gallon. On the 500 scale, ~10-20 PPM; on the 700 scale, ~14-28 PPM.
- BioAg Ful-Power: 2 mL/gallon. On the 500 scale, ~10-15 PPM; on the 700 scale, ~14-21 PPM.
- FoxFarm Kangaroots: 2 mL/gallon. On the 500 scale, ~15-20 PPM; on the 700 scale, ~21-28 PPM.
- General Hydroponics Diamond Nectar: 2 mL/gallon. On the 500 scale, ~10-15 PPM; on the 700 scale, ~14-21 PPM.
Total PPM in Veg (700 Scale):
- Pro Core: 595 PPM
- Pro Grow: 735 PPM
- CaMg: 84 PPM
- Balance: 35 PPM
- Stack: 21 PPM
- Hydroplex: 18 PPM
- Pro-TeKt: 21 PPM
- Ful-Power: 18 PPM
- Kangaroots: 25 PPM
- Diamond Nectar: 18 PPM
- Total: 595 + 735 + 84 + 35 + 21 + 18 + 21 + 18 + 25 + 18 = 1,570 PPM
Analysis: A PPM of ~1,570 on the 700 scale in veg is extremely high.
Athena recommends 600-800 PPM on the 500 scale for veg, which translates to 840-1,120 PPM on the 700 scale. Even in your high-performance setup (previously handling 1800-2000 PPM on the 500 scale, or 2520-2800 PPM on the 700 scale), 1,570 PPM in veg is excessive and risks nutrient burn for a hybrid strain. We need to reduce this significantly.
Flowering Stage PPM Estimate (Weeks 3-5, 700 Scale)
In flowering (weeks 3-5), you’ll use:
- Athena Pro Core: 3 g/gallon. On the 500 scale, ~425 PPM; on the 700 scale, ~595 PPM.
- Athena Pro Bloom: 4 g/gallon. On the 500 scale, ~600-650 PPM; on the 700 scale, ~840-910 PPM.
- Athena CaMg: 2 mL/gallon. On the 500 scale, ~60 PPM; on the 700 scale, ~84 PPM.
- Athena Balance: 3 mL/gallon. On the 500 scale, ~25 PPM; on the 700 scale, ~35 PPM.
- Athena Stack: 1 mL/gallon. On the 500 scale, ~15 PPM; on the 700 scale, ~21 PPM.
- Athena PK: 4 mL/gallon. On the 500 scale, ~100-150 PPM; on the 700 scale, ~140-210 PPM.
- Botanicare Hydroplex: 0.5 mL/gallon. On the 500 scale, ~12 PPM; on the 700 scale, ~17 PPM.
- Terpinator: 5 mL/gallon. On the 500 scale, ~50-70 PPM; on the 700 scale, ~70-98 PPM.
- Dyna-Gro Pro-TeKt: 1 mL/gallon. On the 500 scale, ~15 PPM; on the 700 scale, ~21 PPM.
- Cutting Edge Solutions Sugaree: 2 mL/gallon. On the 500 scale, ~20-30 PPM; on the 700 scale, ~28-42 PPM.
- BioAg Ful-Power: 2 mL/gallon. On the 500 scale, ~12 PPM; on the 700 scale, ~17 PPM.
- General Hydroponics Diamond Nectar: 2 mL/gallon. On the 500 scale, ~12 PPM; on the 700 scale, ~17 PPM.
- Nectar for the Gods Herculean Harvest: 2 mL/gallon. On the 500 scale, ~30-40 PPM; on the 700 scale, ~42-56 PPM.
Total PPM in Flowering (Weeks 3-5, 700 Scale):
- Pro Core: 595 PPM
- Pro Bloom: 875 PPM
- CaMg: 84 PPM
- Balance: 35 PPM
- Stack: 21 PPM
- PK: 175 PPM
- Hydroplex: 17 PPM
- Terpinator: 84 PPM
- Pro-TeKt: 21 PPM
- Sugaree: 35 PPM
- Ful-Power: 17 PPM
- Diamond Nectar: 17 PPM
- Herculean Harvest: 49 PPM
- Total: 595 + 875 + 84 + 35 + 21 + 175 + 17 + 84 + 21 + 35 + 17 + 17 + 49 = 2,025 PPM
Analysis: A PPM of ~2,025 on the 700 scale in peak flowering is far too high.
Athena recommends 1,000-1,200 PPM on the 500 scale for flowering, which is 1,400-1,680 PPM on the 700 scale. Even considering your plants’ tolerance for higher PPMs (2520-2800 PPM on the 700 scale with Lotus), 2,025 PPM with so many additives risks nutrient burn or imbalance. We need to adjust this significantly.
Final Weeks PPM Estimate (Last 1-2 Weeks, 700 Scale)
In the final 1-2 weeks, you’ll use Fade, M.O.A.B., and Ton-O-Bud, replacing Pro Bloom, PK, Stack, Terpinator, Sugaree,
Herculean Harvest,
Hydroplex, Ful-Power, and Diamond Nectar:
- Athena Pro Core: 3 g/gallon. On the 500 scale, ~425 PPM; on the 700 scale, ~595 PPM.
- Athena Fade: 12 mL/gallon. On the 500 scale, ~200-250 PPM; on the 700 scale, ~280-350 PPM.
- Athena CaMg: 2 mL/gallon. On the 500 scale, ~60 PPM; on the 700 scale, ~84 PPM.
- Athena Balance: 3 mL/gallon. On the 500 scale, ~25 PPM; on the 700 scale, ~35 PPM.
- Dyna-Gro Pro-TeKt: 1 mL/gallon. On the 500 scale, ~15 PPM; on the 700 scale, ~21 PPM.
- Mad Farmer M.O.A.B.: 1 g/gallon. On the 500 scale, ~100-120 PPM; on the 700 scale, ~140-168 PPM.
- Future Harvest Ton-O-Bud: 1 g/gallon. On the 500 scale, ~100-120 PPM; on the 700 scale, ~140-168 PPM.
Total PPM in Final Weeks (700 Scale):
- Pro Core: 595 PPM
- Fade: 315 PPM
- CaMg: 84 PPM
- Balance: 35 PPM
- Pro-TeKt: 21 PPM
- M.O.A.B.: 154 PPM
- Ton-O-Bud: 154 PPM
- Total: 595 + 315 + 84 + 35 + 21 + 154 + 154 = 1,358 PPM
Analysis: A PPM of ~1,360 on the 700 scale in the final weeks is reasonable for late flowering, aligning with a range for finishing (typically 1,000-1,400 PPM on the 700 scale before flushing to 140-280 PPM). This stage is manageable, so we’ll focus adjustments on veg and peak flowering.
Adjusting the Plan to Lower PPM (700 Scale)
To achieve safer PPM ranges (840-1,120 PPM in veg, 1,400-1,680 PPM in flowering on the 700 scale), we’ll reduce the number of additives and lower dosages of base nutrients, prioritizing quality-focused products (
terpenes, bud density, trichomes) while maintaining plant health in RDWC.
Revised Plan: Simplified Nutrient Lineup
- Remove:
- Adjust Dosages:
- Reduce Athena Pro Core to 2 g/gallon (90 g per fill).
- Reduce Athena Pro Grow to 2.5 g/gallon (112.5 g per fill) in veg.
- Reduce Athena Pro Bloom to 2.5 g/gallon (112.5 g per fill) in flowering.
- Reduce Athena PK to 3 mL/gallon (135 mL per fill) in flowering.
- Reduce Terpinator to 4 mL/gallon (180 mL per fill).
Revised Lineup:
- Athena Pro Core (10lb): $65 – 2 g/gallon (90 g per fill).
- Athena Pro Grow (10lb): $65 – 2.5 g/gallon (112.5 g per fill, veg stage).
- Athena Pro Bloom (10lb): $65 – 2.5 g/gallon (112.5 g per fill, flowering stage).
- Athena Fade (1 gallon): $45 – 12 mL/gallon (540 mL per fill, last 2 weeks).
- Athena Balance (1 gallon): $45 – 3 mL/gallon (135 mL per fill).
- Athena Stack (16 oz): $75 – 1 mL/gallon (45 mL per fill).
- Athena CaMg (1 gallon): $30 – 2 mL/gallon (90 mL per fill).
- Athena PK (1 gallon): $45 – 3 mL/gallon (135 mL per fill, weeks 3-5 of flowering).
- Botanicare Hydroplex (1 gallon): $40 – 0.5 mL/gallon (22.5 mL per fill).
- Terpinator (1 quart): $25 – 4 mL/gallon (180 mL per fill, weeks 3-7 of flowering).
- Mad Farmer M.O.A.B. (10 oz): $15 – 1 g/gallon (45 g per fill, last 1-2 weeks of flowering).
- Dyna-Gro Pro-TeKt (1 quart): $20 – 1 mL/gallon (45 mL per fill).
- Cutting Edge Solutions Sugaree (1 quart): $25 – 2 mL/gallon (90 mL per fill, flowering).
- BioAg Ful-Power (1 quart): $30 – 2 mL/gallon (90 mL per fill).
- Total: $555
This saves $80 ($635 - $555), bringing the total to $555, leaving $45 in the budget for future purchases.
Revised PPM Estimates (700 Scale)
Vegetative Stage:
- Athena Pro Core: 2 g/gallon. On the 500 scale, ~300 PPM; on the 700 scale, ~420 PPM.
- Athena Pro Grow: 2.5 g/gallon. On the 500 scale, ~350 PPM; on the 700 scale, ~490 PPM.
- Athena CaMg: 2 mL/gallon. On the 700 scale, ~84 PPM.
- Athena Balance: 3 mL/gallon. On the 700 scale, ~35 PPM.
- Athena Stack: 1 mL/gallon. On the 700 scale, ~21 PPM.
- Botanicare Hydroplex: 0.5 mL/gallon. On the 700 scale, ~17 PPM.
- Dyna-Gro Pro-TeKt: 1 mL/gallon. On the 700 scale, ~21 PPM.
- BioAg Ful-Power: 2 mL/gallon. On the 700 scale, ~17 PPM.
- Total: 420 + 490 + 84 + 35 + 21 + 17 + 21 + 17 = 1,105 PPM
Flowering Stage (Weeks 3-5):
- Athena Pro Core: 2 g/gallon. On the 700 scale, ~420 PPM.
- Athena Pro Bloom: 2.5 g/gallon. On the 500 scale, ~400 PPM; on the 700 scale, ~560 PPM.
- Athena CaMg: 2 mL/gallon. On the 700 scale, ~84 PPM.
- Athena Balance: 3 mL/gallon. On the 700 scale, ~35 PPM.
- Athena Stack: 1 mL/gallon. On the 700 scale, ~21 PPM.
- Athena PK: 3 mL/gallon. On the 500 scale, ~90 PPM; on the 700 scale, ~126 PPM.
- Botanicare Hydroplex: 0.5 mL/gallon. On the 700 scale, ~17 PPM.
- Terpinator: 4 mL/gallon. On the 500 scale, ~50 PPM; on the 700 scale, ~70 PPM.
- Dyna-Gro Pro-TeKt: 1 mL/gallon. On the 700 scale, ~21 PPM.
- Cutting Edge Solutions Sugaree: 2 mL/gallon. On the 700 scale, ~35 PPM.
- BioAg Ful-Power: 2 mL/gallon. On the 700 scale, ~17 PPM.
- Total: 420 + 560 + 84 + 35 + 21 + 126 + 17 + 70 + 21 + 35 + 17 = 1,406 PPM
Final Weeks:
- Athena Pro Core: 2 g/gallon. On the 700 scale, ~420 PPM.
- Athena Fade: 12 mL/gallon. On the 700 scale, ~315 PPM.
- Athena CaMg: 2 mL/gallon. On the 700 scale, ~84 PPM.
- Athena Balance: 3 mL/gallon. On the 700 scale, ~35 PPM.
- Dyna-Gro Pro-TeKt: 1 mL/gallon. On the 700 scale, ~21 PPM.
- Mad Farmer M.O.A.B.: 1 g/gallon. On the 700 scale, ~154 PPM.
- Total: 420 + 315 + 84 + 35 + 21 + 154 = 1,029 PPM
Analysis of Revised PPM (700 Scale)
- Vegetative Stage: ~1,105 PPM is within Athena’s recommended 840-1,120 PPM on the 700 scale for veg, fitting your high-performance setup (previously handling 2520-2800 PPM with Lotus). Monitor for nutrient burn and dilute if needed.
- Flowering Stage (Weeks 3-5): ~1,406 PPM aligns with Athena’s 1,400-1,680 PPM recommendation on the 700 scale for flowering in RDWC, especially in your high-CO2, high-light environment. This should be safe, but watch plant response.
- Final Weeks: ~1,029 PPM is ideal for late flowering, allowing a smooth transition to your flush (140-280 PPM on the 700 scale by harvest).
Why This Revised Plan Works
- Balanced PPM: Reduced dosages and removed redundant additives (Kangaroots, Diamond Nectar, Herculean Harvest, Ton-O-Bud) keep PPM at safe levels (1,105 in veg, 1,406 in flowering, 1,029 in final weeks on the 700 scale).
- Quality Focus Maintained:
- Terpenes: Stack, Terpinator, Ful-Power, and Sugaree ensure robust aroma.
- Bud Density: PK and M.O.A.B. provide targeted P and K boosts.
- Trichome Production: Balance and Pro-TeKt enhance frostiness.
- Stress Reduction: Hydroplex mitigates environmental stress.
- RDWC Compatibility: All products are soluble, non-microbial, and safe with hypochlorous acid.
- Budget: $555 fits within $600, leaving $45 for future purchases.
Application Plan
- Vegetative Stage:
- Pro Core (2 g/gallon), Pro Grow (2.5 g/gallon), targeting 1,000-1,100 PPM (700 scale).
- Add CaMg (2 mL/gallon), Balance (3 mL/gallon), Stack (1 mL/gallon root drench), Hydroplex (0.5 mL/gallon), Pro-TeKt (1 mL/gallon), Ful-Power (2 mL/gallon).
- Use hypochlorous acid for system cleanliness.
- Flowering (Weeks 1-7):
- Pro Core (2 g/gallon), Pro Bloom (2.5 g/gallon), targeting 1,400-1,500 PPM (700 scale).
- Weeks 3-5: Add PK (3 mL/gallon), Terpinator (4 mL/gallon), Sugaree (2 mL/gallon).
- Weeks 6-7: Stop PK, add M.O.A.B. (1 g/gallon), continue Terpinator and Sugaree.
- Continue CaMg, Balance, Stack, Hydroplex, Pro-TeKt, Ful-Power, and hypochlorous acid.
- Last 2 Weeks:
- Pro Core (2 g/gallon), Fade (12 mL/gallon), targeting ~1,000 PPM (700 scale).
- Stop Stack, Terpinator, M.O.A.B., Hydroplex, Sugaree, and Ful-Power.
- Continue CaMg, Balance, Pro-TeKt, and hypochlorous acid.
Summary
Using the 700 scale, the revised $555 plan adjusts dosages and removes redundant additives, keeping PPM at safe levels (1,105 in veg, 1,406 in flowering, 1,029 in final weeks) while maintaining quality for your high-performance RDWC setup. You’re set for a top-shelf harvest with excellent bag appeal! Let me know if you’d like further tweaks.