DIY EI Liquid Premium Fertilizer for Planted Tanks

Do you want to dose fertilizers but the cost of liquid fertilizers is too high?

Do you want to avoid going through the hustle of mixing dry fertilizers yourself?

Then this is for YOU!!!!!!

What you get- 2x 500ml dosing bottles (1x Micros, 1x Macros)
3 sets of fertilizer packets (so you are essentially getting enough to make 1500ml of both micros and macros)

The EI fertilizer is shipped without water. It is a DIY liquid fertilizer for aquarium plants.

What you need to do with this DIY all in one aquarium fertilizer is add 500ml of RO water to each bottle. When the solution in each bottle runs out, simply add the refill packet to the appropriate dosing bottle. Then pour 500ml of RO water and you are good to go again!

Dosing Instructions:
Add 5ml per 20 gallons of water for both the micro and macro, 3x per week on alternating days per the EI fertilizer dosing instructions.

How long will the DIY fertilizer for planted aquarium last?

  • 20-Gallon tank- roughly 2 years
  • 40-gallon tank- roughly 1 year
  • 80-gallon tank- roughly 6 months
  • and so on…

Who needs GH booster:

Unless you have very hard water, of the addition of the GH booster is likely necessary. Even if you do have hard water unless you know the concentration of both calcium and magnesium, adding some GH booster is strongly recommended.

Why is the GH booster recommended?

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

Special thanks to WETS dosing calculator:

Warning: Micro solutions will sometimes grow mold. To prevent mold growth, you should either refrigerate it or add 10ml excel to the solution!

Guaranteed Analysis

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

Concentrations (as per wets calculator):


  • B- 0.09ppm
  • Cu 0.01ppm
  • Fe 0.50 ppm
  • Mg 0.11 ppm
  • Mn 0.14 ppm
  • Mo 0.0038 ppm
  • Zn 0.03 ppm
  • dGH 0.02


  • N- 7.5ppm
  • P- 1.3ppm
  • K- 4.27ppm