SKU: 34288918970
dry fertilizers for planted aquariums

dry fertilizers for planted aquariums Aquarium Co-Op Easy Potassium (120 ml)

Sale price$26.80 Regular price$29.78
Save 10%

Pay in installments of $7.45 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

dry fertilizers for planted aquariums Aquarium Co-Op Easy Potassium (120 ml)Potassium supplement for enhanced plant growth Easy to use measuring cap for accurate dosing Safe for fish, shrimp, and snails Potassium is a very important macronutrient for planted aquariums. If aquatic plants don't get enough of this nutrient, they can develop distinctive pinholes that are sometimes rimmed with brown or yellow. While Easy Green all in one fertilizer already contains plenty of potassium for most planted tanks, Easy Potassium is a

  • Potassium supplement for enhanced plant growth
  • Easy-to-use measuring cap for accurate dosing
  • Safe for fish, shrimp, and snails

Potassium is a very important macronutrient for planted aquariums. If aquatic plants don't get enough of this nutrient, they can develop distinctive pinholes that are sometimes rimmed with brown or yellow. While Easy Green all-in-one fertilizer already contains plenty of potassium for most planted tanks, Easy Potassium is a useful supplemental fertilizer for people who are running high light planted tanks with CO2 injection or have lots of potassium-hungry plants (like java fern and anubias). 

Please note that we have changed over to dosing caps. Pump heads are still available for purchase. 

1. For the 500 ml (16.9 oz) bottle:
— Use the measuring cap to dose(1 ml) per 10 gallons of water, 1-3 times a week
— Each 1ml adds 2 ppm potassium to 10 gallons of water
— Treats 5,000 gallons total

2. For the 120 ml (4 oz) bottle:
— Dose 2 drops per gallon of water, 1-3 times a week
— Each dose of 2 drops adds 2 ppm potassium to 1 gallon of water.
— Treats 1,200 gallons total
— Great for nano tanks under 10 gallons

When in doubt, start low and increase the dosage after 2 weeks. 

Guaranteed Analysis: Soluble Potash (K2O) 9.12%
— Derived from potassium sulfate and potassium citrate
— NPK rating 0 - 0 - 9.12

Notes:
— Please store the fertilizer upright in a cool, dry location away from children. The pump head (if using an older version) and dropper cap are not leak proof. For optimal shelf life, store out of light.
— If you have the pump head version, keep the tip of the pump clean of debris. Wiping the pump tip after each use helps prevent a mineral crust from developing. If the pump gets blocked up, it can cause the fertilizer to spray in a random direction, so run the pump head under warm water until the blockage melts away.
— Warning: Fertilizer can be irritating if it gets into your eyes, nose, or mouth, and it can cause stomach upset if swallowed. If you get Easy Potassium on your skin, rinse it off. If you get it in your eyes or mouth, rinse thoroughly for 15 minutes. For USA customers,  reference the poison.org website. For Canadian customers, reference dpic.org

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 34288918970

Discover Niche Categories That Outsell dry fertilizers for planted aquariums

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 25 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Verified Purchase
Larry
Port Orchard, US
★★★★★ 5
Well made shower curtain
Color: Grey Striped, Size: 72"W x 72"L (Pack of 1)
It's nice and fits my shower for and good price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
T
Verified Purchase
Terry
Alexandria, US
★★★★★ 5
Good product
Color: Grey Striped, Size: 72"W x 72"L (Pack of 1)
Very nicely made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
W
Verified Purchase
Walter P.
Birmingham, US
★★★★★ 4
Just okay
Color: Grey Striped, Size: 72"W x 84"L (Pack of 1)
Okay curtain, not great, but not bad. Looks like it has kind of a faint background design. Has a plastic type feel. Looks okay.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2025
T
Verified Purchase
Tanya
Phoenix, US
★★★★★ 5
Pleasantly Surprised!
Color: Grey Striped, Size: 72"W x 72"L (Pack of 1)
I was looking for this exact product but didn’t know it! We recently moved into a new home and had zero window treatments so needless to say I wanted something quick, affordable and not vinyl WalMart blinds. We are happy with our purchase and would highly recommend to others. Some complain of the adhesive not sticking- make sure to clean the window wells/walls etc prior to installing these. If the surface is free of dirt/grease there will be no issues with them staying put.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2025
S
Verified Purchase
SUSIEQ
Dallas, US
★★★★★ 5
Nice
Color: Grey Striped, Size: 72"W x 78"L (Pack of 1)
Very nice material
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026

recommand products