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50 reviews

2Hr Aquarist APT Zero

Tackle the most demanding plants, or just enjoy everyday magic in new tanks with aquasoil, and aquariums with more fish. The easiest way to unlock the true potential of your planted tank today.

The 2Hr Aquarist All-In-One Fertilizer.
Richer Colors, Less Algae. Better Results.
FAQ Here.

Dose 5ml per 100L four times a week or 3ml per 100L daily. 


200ml lasts ~3mths for an 18 Gal / 70L tank. 


500ml lasts ~3mths for a 50 Gal / 190L tank. 


1000ml lasts ~3mths for a 100 Gal / 380L tank. 


Our signature Standard Pack comes with a calibrated pump.
300ml. Lasts ~3mths for a 30 Gal / 115L tank.



Customer Reviews
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Filter Reviews:
    Jason B.
    United States United States

    Only Fertilizer I will use

    APT zero has been perfect for my planted tank. I have slower growing lower light plants with co2 injection and I have seen no algae growth in 8 weeks of using this product. Just let my fish provide the nitrates with their waste and ATP zero does the rest.

    The 2Hr Aquarist 2Hr Aquarist APT Zero Review
    Gary W.
    United States United States

    My aquarium says thank you

    Great service and great products.

    Jennifer P.
    United States United States

    5 Months In on First Planted Tank and Couldn't be Happier

    This is my first planted tank. I did a ton of research before starting and am so glad I did, as it helped me avoid a lot of first time mistakes that could have been both costly and unsightly. My tank is fully automated (water in, water out, dosing, temp, etc.). I chose 2hr aquarist because they had additives that were specifically formulated to meet my needs with a minimum of work. I have been incredibly happy. The plants are thriving, even the notoriously finicky ludwigia pantanal. The colors are absolutely beautiful. Fish are happy. Water parameters are 100% stable. I couldn't ask for more.

    The 2Hr Aquarist 2Hr Aquarist APT Zero Review
    Carlton H.
    United States United States

    Repeat customer!

    I tried these ferts a few months back when I noticed that my nitrates were climbing too high between water changes and I was developing all sorts of algae in my well established tank. Since switching to APT Zero I've had none of these problems and the plants are thriving. Highly recommend if you're serious about great plant health and vibrant colors.

    The 2Hr Aquarist 2Hr Aquarist APT Zero Review
    Tom V.
    United States United States

    This Stuff Works!

    I’m on my third planted tank and using APT Zero for the first time. Finally my plants are thriving, and without C02! It’s nice when a product does what it advertises. Thank you!


    we are here to help

    Questions on usage, dosage or your tank? Let us know.

    We also have a detailed FAQ here that may help.

    Does adding more iron make my red plants redder?

    Does adding more iron make my red plants redder?

    September 02, 2021 4 min read

    Will adding more iron make my red aquarium plants redder ?
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    What Planted Tank Fertilizer should I use?

    What Planted Tank Fertilizer should I use?

    October 16, 2020 3 min read

    Do I really need fertilizers for my aquarium? There are so many choices in the market- which is the right one for me?
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    How to read fertilizer labels, and what is ppm ?

    How to read fertilizer labels, and what is ppm ?

    August 17, 2020 2 min read

    Fertilizer labels can be confusing. This is how to read fertilizer labels for your planted tank or aquarium.
    Read More
    Root or water column fertilization?

    Root or water column fertilization?

    July 15, 2020 6 min read

    Should we use root tablets or dose directly into the water column for your planted tank? What works and why...
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