SKU: 9361186534
low tech planted tank fertilizer

low tech planted tank fertilizer 2HR Aquarist APT 1 – Low-Tech Liquid Fertilizer

Sale price$23.63 Regular price$26.26
Save 10%

Pay in installments of $6.57 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 5 - Sep 10

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

low tech planted tank fertilizer 2HR Aquarist APT 1 – Low-Tech Liquid FertilizerAPT 1 is an all in one liquid fertilizer for aquariums with more fish than plants, and for new aquariums with aquasoil. The formula replicates the full balanced profile of APT 3 but without nitrates and phosphates because in fish heavy tanks, these nutrients are already supplied in sufficient quantities through fish food and waste. The result is maximum algae control combined with complete micronutrient delivery for healthy plant growth. APT 1 is 3

APT 1 is an all-in-one liquid fertilizer for aquariums with more fish than plants, and for new aquariums with aquasoil. The formula replicates the full balanced profile of APT 3 but without nitrates and phosphates — because in fish-heavy tanks, these nutrients are already supplied in sufficient quantities through fish food and waste. The result is maximum algae control combined with complete micronutrient delivery for healthy plant growth.

APT 1 is 3 times more concentrated than conventional fertilizers (in total soluble elements per ml), with components up to 50 times more bioavailable across a wide range of pH values.

Who is APT 1 for?

  • Aquariums with more fish than plants
  • New aquariums (first 1–3 months) with aquasoil
  • Low-tech tanks without CO₂ injection
  • Tanks prone to algae due to excess nutrients

How does it work?

APT 1 supplies potassium, magnesium, iron, and trace elements (B, Cu, Mn, Mo, Zn) without adding nitrogen or phosphorus. Plants use the nutrients already available in the aquarium from fish waste and the substrate, while the risk of nutrient oversaturation — the primary driver of algae growth — is kept to a minimum.

Dosing

  • 3 ml per 100 L daily
  • Recommended water change: 30% weekly
  • 300 ml (with pump) ≈ 3 months for a 115 L tank

Guaranteed analysis

  • NPK: 0-0-7 (+1.4)
  • Soluble Potash (K₂O): 7%
  • Magnesium oxide (MgO): 1.4%
  • Iron (Fe, chelated EDTA/DTPA/EDDHA): 0.09%
  • Trace elements: B, Cu, Mn, Mo, Zn
  • Safe for shrimp and sensitive fish

When to switch to APT 3?

After the first 3 months in a new aquarium, or once your tank has more plants than fish, consider transitioning to APT 3 — the full NPK fertilizer in the series.

Which APT fertilizer is right for you?

Product Best for NPK CO₂ needed?
APT 1 Fish-heavy tanks, new tanks with aquasoil No NO₃/PO₄ No
APT 3 Plant-heavy tanks, balanced aquascapes Full NPK Optional
APT e High-tech, Dutch style, EI method High NPK Yes

Frequently Asked Questions

What is APT 1 used for?

APT 1 is a liquid fertilizer for aquariums where nitrates and phosphates are already present from fish waste or a nutrient-rich substrate. It provides potassium, magnesium, iron, and trace elements without adding nitrogen or phosphorus.

Is APT 1 safe for shrimp?

Yes, APT 1 is safe for shrimp and sensitive fish when used at the recommended dosage.

When should I switch from APT 1 to APT 3?

After the first 1–3 months in a new aquarium with aquasoil, or when plants outnumber fish in your tank.

Can APT 1 be used in a tank without CO₂?

Yes. APT 1 is well-suited for low-tech aquariums without CO₂ injection.

Does APT 1 help control algae?

Yes. By withholding nitrates and phosphates, APT 1 reduces the risk of algae growth caused by excess nutrients — a common issue in fish-heavy or newly established tanks.

What is the difference between APT 1 and APT 3?

APT 1 contains no nitrates or phosphates and is designed for fish-heavy or new tanks. APT 3 provides full NPK nutrition and is designed for plant-heavy aquariums where the substrate alone cannot supply sufficient nitrogen and phosphorus.

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: 9361186534

Discover Niche Categories That Outsell low tech planted tank fertilizer

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 11 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jennifer Seat
San Leandro, US
★★★★★ 5
Great exercise tool
Color: Multicolour
I use these to help with my physical Therapy and deep tissue massages at home. These were a low cost and I can have them In multiple locations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
O
Verified Purchase
Odalis Perez
Waukegan, US
★★★★★ 5
Good for small breeds and fun!
Color: Multi Squeaker Balls, Size: X-Small, Style: 4-Pack
I’m glad I found these for my 6 month puppies they absolutely love them super fun to play with. Although, the surface has come off due to my puppies biting it off. Look at the sizes as they have a few!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
O
Verified Purchase
Olga
Draper, US
★★★★★ 5
A lot of fun for dogs
Color: Multi Squeaker Balls, Size: Large, Style: 4-Pack, Color: Multi Squeaker Balls, Size: Large, Style: 4-Pack
My dogs love it a lot. Balls don't fall off the balcony - good size. Great sound which catches dogs attention . Colorful . Good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
J
Verified Purchase
Jarrett Austin pirtle
Port Orchard, US
★★★★★ 5
👍🏼
Color: Multi Squeaker Balls, Size: Medium, Style: 4-Pack
This dog squeak ball has been a big hit in my home and keeps my dog entertained for long periods of time. The squeaker really grabs their attention and encourages play, tapping into their natural instincts to chase and fetch. My dog especially loves how it bounces and squeaks, making it perfect for both indoor and outdoor play. It’s lightweight and easy for them to carry around, even for quick games of fetch in the yard. In terms of durability, it has held up pretty well so far. The squeaker may not last forever with heavy use, but the ball itself still stays in good shape. Overall, it’s a fun, engaging toy that keeps my dog active and happy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
P
Verified Purchase
Precise Disarray
Los Angeles, US
★★★★★ 4
budget friendly for dogs who lose balls in the creek
Color: Multi Squeaker Balls, Size: Medium, Style: 4-Pack
Not great quality, but works for our needs. I have a ball crazy lab. She loves for me to throw a ball using the Chuck-it Ball Launcher. We do this in our wide back yard that butts up to a creek. At some point during her run and fetch, she will take a quick detour right into the creek. She nearly always still has the ball, but once in awhile it is lost. Not wanting to chance it on more pricy (and more durable) balls, I get these or something like these. They dont cost much, yet they do the job. I' not upset if one gets sacrificed to the creek waters and mud. Since the balls end up getting wet often, they will kinda fall apart over time (chasing, kicking, throwing, retrieving, dog saliva etc). But she doesn't chew on them. Glad she doesnt as tennis balls arent good on teeth, but even if it was ok, the balls probably would be breached easily. SO get these if you are like me and want a ball that does the job but arent a total financial loss if get lost or destroyed. For indoor play we and by we I mean our 3 dogs demand that we use the rubbery max glow chuck-it ball. And will ignore this style ball. Yes, I am well trained. lol
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2024

recommand products