SKU: 5334731155
fish tank water fertilizer for plants

fish tank water fertilizer for plants NA Macro & Micro Liquid Aquarium Plant Fertilizer 2000mL (1/2 Gallon)

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Description

fish tank water fertilizer for plants NA Macro & Micro Liquid Aquarium Plant Fertilizer 2000mL (1/2 Gallon)Why do you need NPK liquid fertilizer For a 20 gallon NPK liquid fertilizer, higher light tank dosing would be as follows: 2 pumps of the micros per day Monday, Wednesday, and Friday 2 pumps of the macros per day Tuesday, Thursday, and Saturday 50% weekly water change is suggested on the 7th day per EI guidelines followed by the addition of the GH booster of your choice Who needs GH booster: The addition of GH booster to NPK aquarium fertilizer is

Why do you need NPK liquid fertilizer

For a 20-gallon NPK liquid fertilizer, higher light tank dosing would be as follows:

  • 2 pumps of the micros per day Monday, Wednesday, and Friday
  • 2 pumps of the macros per day Tuesday, Thursday, and Saturday
  • 50% weekly water change is suggested on the 7th day per EI guidelines followed by the addition of the GH booster of your choice

Who needs GH booster: 

The addition of GH booster to NPK aquarium fertilizer is necessary if you do not have very hard water. Adding some GH booster is also suggested if you have hard water but do not know the concentration of both calcium and magnesium.

Why is GH booster suggested when using liquid NPK: 

GH booster will add magnesium and calcium as well as add extra potassium, which is all very important to plant growth.

Do I need to add extra iron to liquid NPK fertilizer products?

For most tanks, the iron that is already included in the Liquid M will be enough.  Some high light, high co2 tanks however will require more iron.  If that is the case, Liquid Iron is a great choice.

 

Dosing Instructions

Full EI levels: 1 pump of each bottle per 10 gallons 3x per week. For lower light/lower tech tanks: 1 pump per 20 gallons 3x per week

 

Liquid NPK

Liquid NPK is tailored to the EI dosing method and it includes micro and macronutrients for plants. This NPK aquarium fertilizer can be adapted to other dosing techniques as well. Bottles are 500ml each and will last more than 41 weeks on a 20-gallon tank dosing 3x per week.

Guaranteed Analysis

Information regarding the heavy metal content of this product can be found at Association of American Plant Food Control Officials

 

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SKU: 5334731155

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J
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James C. Higgins
Phoenix, US
★★★★★ 5
Polyglo mit
Exact polyglo applicator mit. Works perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
C
Verified Purchase
CSnc
New York, US
★★★★★ 5
The Mitt is it.
I ordered the applicator because the Poli Glow Kit on hand was ordered and received a couple of years ago and it had the old chamois covered rectangular applicator. I could tell by looking that the mitt was the better solution. Also, the mitt was described well in an online video, so using it was easy to learn. The results were fantastic and I am very pleased with it. The only thing I would change is to add some more information on how often to replenish the mitt and with how much Poli Glow liquid. I wasn't sure if I was skimping or wasting the material. As I approached halfway, I couldn't tell if I was going to run out before I finished, so I tried to be as frugal as possible. Turns out, I had liquid left over.
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Reviewed in the United States on September 13, 2016
M
Verified Purchase
marian page smith
Boise, US
★★★★★ 5
Work perfect
Work real good
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Reviewed in the United States on June 11, 2026
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Kim Kietzman
Birmingham, US
★★★★★ 5
Didnt need
Great product
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Reviewed in the United States on June 5, 2026
J
Verified Purchase
Jim H.
Los Angeles, US
★★★★★ 4
Works much better than the original applicator which left streaks and overlaps
Works much better than the original applicator which left streaks and overlaps. Much easier to use on contours and crevices.
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Reviewed in the United States on October 14, 2014

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