

🌿 Elevate your aquarium game with science-backed, algae-free plant magic!
2HR Aquarist APT 1/ Zero is a premium 500ml liquid fertilizer designed specifically for planted aquariums with heavy fish populations. It delivers a precise blend of macro and micro nutrients including iron and magnesium, while eliminating phosphates and nitrates to prevent algae growth. Trusted by thousands across 20+ countries, this all-in-one formula promotes rapid, healthy plant growth and vibrant colors, making it the go-to choice for serious aquarists seeking a clean, thriving aquatic ecosystem.









| ASIN | B08Y8LYN9N |
| Best Sellers Rank | #27,550 in Pet Supplies ( See Top 100 in Pet Supplies ) #254 in Aquarium Water Treatments |
| Brand | THE 2HR AQUARIST |
| Brand Name | THE 2HR AQUARIST |
| Coverage | Full |
| Customer Reviews | 4.5 out of 5 stars 241 Reviews |
| Included Components | NIL |
| Item Form | Liquid |
| Item Type Name | Aquarium Plant Fertilizers |
| Item Weight | 0.5 Kilograms |
| Liquid Volume | 500 Milliliters |
| Manufacturer | 2Hr Aquarist Pte Ltd |
| Mixing Ratio | 1:0:0 |
| Model Number | APT 1 |
| Specific Uses For Product | Aquarium Plant Fertilizers |
| Target Species | Fish |
| Unit Count | 1.0 Count |
| Warranty Description | NIL |
C**U
Best fertilizer
I've used pretty much all of the major names and this is hands down the best fertilizer. I have no intention to go E/I and have an overstocked tank. My plants grow quickly and without any deficiencies. My crypts are so robust that I've moved them and rescaped and never had any crypt melt which happened all the time with other brands. Been using them for years and will continue to only use them.
B**N
science based lean dosing, keeps essential nutrients in an established fish planted tank
My plants are doing amazing. No nutrient defiencies. I have aqua soil and deep root tabs but its been about a year since soil/root tabs so its really just the fertilizer doing the work now. I had 0 algae which was expected since this does not dose excess nutrients. These micro nutrient fertilizers (lean fertilizer) is incredible if you want to avoid algae, have nutrients in substrate and have fish in the tank which means they will be pooping(nutrients). I will be buying this product until they degrade it or raise the price too high. Also the science seems to be there.
B**B
Awesome All in one fertilizer
Great product.. lots of plants were full of hole and dull in color. Holes gone and color back 👍
A**O
Great but not cheap
Amazing job alot of growth alot of dosing .. if it wasn't a daily dose would be better cause its costly
H**H
Best fertilizer, must have for AquaScaping!!
For few months now I’ve been battling algae issues, do to a diy substrate fertilizer I made, it threw off my entire system and nearly destroyed most of my plants including my carpet (Monte Carlo) do to staghorn and black beard algae and after a lot of research and fertilizer trials I FINALLY found a perfect fertility for my AquaScaping, this blend has no nitrate and phosphate which is perfect for the setup and kinds of plants I current own. I did a 80% water change to reset and prepare my tank for this new fertilizer which I will be dosing 3x a week 15ml for my 75g tank! 1 dose and by 3 day I can tell the difference already and my plants responding perfectly well and my Monte Carlo are pearling amazing I will never again buy another fertilizer if it’s not APT 1. Where were you all my life 😭…
E**O
El apt 1 es super para acuario con plantas y más peces
Muy bueno y súper profesional
R**T
This is a great product!
I’ve been very impressed with this product. I have a high stock, dense plant, hi-tech aquarium. I also have a CO2 system. The reason I like the product so much is because it doesn’t raise my nitrate/phosphate levels. That means longer times between large water changes. Of course I still change out 10% every week regardless. It’s a little more costly, but I think the colors speak for the product. Definitely worth the cost.
B**Y
Works great and turned my browning plants around quick!
This stuff worked great in my planted fish tank that has 8 cory cats, ~15 bladder snails, 6 anubias nana petite and 4 java ferns! My leaves were browning on all my plants so I picked this up and within a week they were all looking healthy again! 3 months of using it and still seeing good results with good growth. And my fish are all safe and happy as well! Definitely recommend it!
Trustpilot
1 week ago
3 weeks ago