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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
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Description
Athena - PKAthena PK is a bloom boosting complement to our 2 part Bloom fertilizers. PK is an essential supplement for the mid to late flowering phase of high yielding plants. Low nitrogen and balance phosphorus potassium ratios boost yields without causing nutrient antagonism. Many PK boosters add far too much of these elements and create a cascade of problems, such as reducing calcium and magnesium availability. Balanced elemental bioavailability is essential
Athena PK is a bloom boosting complement to our 2-part Bloom fertilizers.
PK is an essential supplement for the mid- to late flowering phase of high-yielding plants. Low nitrogen and balance phosphorus/potassium ratios boost yields without causing nutrient antagonism.
Many PK boosters add far too much of these elements and create a cascade of problems, such as reducing calcium and magnesium availability. Balanced elemental bioavailability is essential in the flowering phase to boost essential oil and terpene production.
Formula is sediment free and is compatible with all dosing and irrigation systems including fine dripper heads. Small amounts of micro-particles are occasionally visible in some conditions but will not affect mineral balance or system compatibility.
Product Features
Irrigation - Compatible with all dosing and irrigation systems.
Solubility - 100% soluble, no residue, will not clog emitters.
Stability - Once mixed, pH will remain stable in solution.
Filtration - Two-stage filter with 1 micron mesh to remove all particulates and contaminants.
Best Practices
| Mixing | Do not combine fertilizers in concentrate form, always dilute in water. |
| Measuring | Carefully measure using clean instruments. Never put anything into the bottle. |
| Water | Compatible with all water sources. |
| pH Range | 5.6 - 6.2 |
| pH Adjustment | Use Athena Balance to buffer water or adjust to desired pH after mixing. |
| Storage | Store closed in original packaging at a temperature between 7° C and 29° C. |
| Diagnostics | Extreme heat or cold can affect solubility. If you see crystallization or sediment, shake well to redissolve. If problem continues, contact Athena Support for a replacement |
Application Instructions
| Rate | 8-32mL per 10L depending on strain and environment. |
| Frequency | Apply with every feeding. |
| 1 mL/3.785L = | 0.05 (EC) • 25 (PPM 500) • 35 (PPM 700) |
GUARANTEED ANALYSIS
Available Phosphate (P2 O5 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4%
Soluble Potash (K2 O) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5%
Magnesium (Mg) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.96%
0.96% Water Soluble Magnesium (Mg)
Sulfur (S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5%
1.5% Combined Sulfur (S)
DERIVED FROM Monopotassium Phosphate, Magnesium Sulfate, Potassium Sulfate
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Very durable and my Heeler's fave inside toy
Size: Large
My red Heeler loves these balls, second only to Tennis balls but she destroys those within minutes and they are outside only. This is her inside ball. She is hard on toys and has the strongest bite of any dog I've had (shepherds, collies, weimaraners, retrievers, Labs) yet these continue to last. She catches the ball, we play tug of war with it (she places it in hand hand and pulls only when I have a firm grip, she shakes it and flings it. The rubber outside even outlasts the water-bottle like plastic piece inside. Steps holds the ball with her foot and pulls on the rubber with her mouth, stretching it to sometimes twice its size. I pull while shes pulling. This thing gets abused daily and keeps on going. Its the most used toy and she brings it to me to play with every day. Each ball lasts about 6 months before the inside ball is toast and the outer rubber is finally starting to tear/break. which for me in an incredibly long time. If this ball is available to play, she wants it over all others. Shes NEVER gotten a piece off to actually swallow and that alone is worth the price.
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Reviewed in the United States on June 4, 2025
★★★★★ 4
Good for price
Size: Medium
Good product, wish it was a little more chew resistant
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Good deal. Pretty durable
Size: Large
Dog loves it! Not as crinkly, but still enjoyed even if smashed a bit.
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Reviewed in the United States on February 22, 2026
★★★★★ 3
Great ball but easily broken
Size: Large
I got this ball for my two dogs, one is a 90 pound yellow lab mix and the other 45 pound black lab mix. So far only my bigger dog has played with it and has also busted it. He was playing with it for probably half an hour just chomping down to make it crinkle and crunch. It's quite the loud ball!! I noticed the sound wasn't as loud so I took a peek and noticed my dog basically crushed the inner ball into a much smaller ball. He's still having a good time with it though. It's only a matter of time though that he's going to chew the outer shell because it doesn't make noise like it did.
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Reviewed in the United States on December 31, 2024
★★★★★ 5
Dogs go for this ball every time
Size: Large, Size: Large
My Boston's and Rotti love this ball. I had to get two more. It's great for the Boston's because they can grasp it with the way it's made with the softer rubber. They love the crackle sound. It's just the right size and weight for smaller like the Boston Terrier and Rotti. Easy cleaning, rinses right off.
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Reviewed in the United States on May 13, 2026