2Hr Aquarist APT 3
Original price was: ₹1,000.00.₹975.00Current price is: ₹975.00.
Compared to conventional fertilisers (largely developed pre-2000s for ‘fish tanks’ with simpler / hardy plants):
3X more concentrated for demanding species*
2X more nitrate limiting for richer colours^
Dose 3ml per 100L daily.
500ml lasts ~3mths for a 50 Gal / 190L tank. Pump not included.Description
Artful Intelligence

Power
Example of APT’s relative concentration compared with a 50-year old European ‘big brand fertiliser’. APT contains 5X the amount of Phosphorus (P) and 6X Potassium (K) per ml. That is like having 5 shots instead of 1 in your morning espresso, if you are into coffee 🙂

Balance
Simply ‘more’ is not necessarily better.
Lower Nitrogen (N) delays chlorophyll production and induces richer colours- to a point. Nitrogen is also critical for metabolism. APT pushes the boundaries of that trade-off. Maximum colour before diminishing returns.

Form
Similar to food labels, “20% protein” or “1% Iron” tells little about actual absorbability, efficacy and impact. APT’s components are up to 50X more absorbable, and accessible across a wider range of pH and other water parameters.


APT 1 is perfect for tanks with more fish, fewer plants. Also for new tanks (<3 months) with aquasoil. Enjoy comprehensive nutrition without nitrates and phosphates for maximum algae control.
APT 3 is perfect for tanks with more plants, fewer fish. Enjoy 100% comprehensive macro, micro and trace minerals. Unlocks the full potential of the hobby’s most demanding plants.
APT e is perfect for heavily planted Dutch Style tanks and users who understand EI methodology. Supremely concentrated and expertly balanced.
When might APT not work?
in new tanks-
It is normal for tanks less than 6 months old to have various bouts of algae issues, most of which can be avoided with proper cycling prior to planting. APT cannot compensate for inadequate cycling.
It is also normal for plants to take several weeks to adapt. APT helps to speed up the process, but you still need patience. In tanks without CO2, this takes 2-3 months. Adaptation may involve shedding leaves (yes!) and / or having leaves that appear deformed. The hardest, yet most effective response is to tinker less and provide a stable tank environment for the plants to adapt. Look for improvement in NEW LEAVES, not old ones.
in mature tanks-
A mature tank can respond to better nutrition in several ways. The best (and most common) outcome is healthier NEW GROWTH. Old leaves do not rejuvenate even when conditions improve, and may even deteriorate faster, as we explain here.
In rare cases, better nutrition can seemingly trigger algae. This can happen:
(a) if there is prior accumulation of organic waste, especially on mosses and slow growers. When plants adjust to a new nutritional environment, they release proteins that serve as food for algae. The combination of accumulated organic waste + excreted proteins can be a trigger for algae.
(b) if volatile organic matter is released due to replanting or cleaning. In mature tanks, volatile organic matter builds up naturally in the substrate and hard-to-reach corners. When inadvertently released, often coincidentally with improved nutrition, algae can bloom. This can be avoided by performing thorough water change the 2Hr way after replanting / revamping the tank.
(c) if seemingly ‘OK’ plants (especially slow growers like Mosses, Bucephalandra, Crypts, Java Fern, Anubias, Alternanthera species etc.) are actually not as healthy as they appear. Plants often respond to improved tank conditions (better nutrition, or lighting, or CO2…) by accelerating the shedding of older, less healthy leaves. This attracts algae, which help in the decomposition process. Slow growers that are not healthy are especially hard to spot, as they can be in ‘Zombie’ states for a long time, as we describe here.
(d) finally, if you are making a drastic change in dosing regime (e.g. very lean to something alot richer, or vice versa), this forces plants to reprogram their cells to adapt and this process almost certainly triggers algae. A gradual transition over 2-3 weeks often helps. But the longer slow-growers have adapted to a particular environment, the harder it is for them to ‘switch’.
Quick Comparison
| 2Hr Aquarist APT 3 remove | Plant and Shrimp Stratum Soil, 8.8 lb (4 kg) remove | Algae Scraper, 26″ / 66 cm remove | Bio-stratum aquarium soil | 2 kg remove | Bio-stratum aquarium soil | 4 kg remove | Plant and Shrimp Stratum, aquarium soil 17.6 lb (8 kg) remove | |
|---|---|---|---|---|---|---|
| Name | 2Hr Aquarist APT 3 remove | Plant and Shrimp Stratum Soil, 8.8 lb (4 kg) remove | Algae Scraper, 26″ / 66 cm remove | Bio-stratum aquarium soil | 2 kg remove | Bio-stratum aquarium soil | 4 kg remove | Plant and Shrimp Stratum, aquarium soil 17.6 lb (8 kg) remove |
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| Price | Original price was: ₹1,000.00.₹975.00Current price is: ₹975.00. | ₹1,899.00 | ₹1,799.00 | ₹1,499.00 | ₹2,499.00 | ₹3,499.00 |
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| Additional information | ||||||
| Description | Compared to conventional fertilisers (largely developed pre-2000s for 'fish tanks' with simpler / hardy plants):
3X more concentrated for demanding species*
2X more nitrate limiting for richer colours^
Dose 3ml per 100L daily.
| Collected from the mineral-rich foothills of Mount Aso Volcano in Japan, Fluval Stratum makes an ideal alternative substrate for planted aquariums and those featuring shrimp. |
| Made from 100% natural, mineral-rich volcanic soil from Mount Aso in Japan and infused with beneficial nitrifying bacteria, Bio-Stratum is specifically formulated to provide immediate biological activity and maintain ideal conditions for a thriving planted aquarium. Characterized by its non-compacting 1 mm powder granules, Bio-Stratum allows plants with even the finest and most delicate roots to easily spread throughout the porous substrate while absorbing a powerful mix of nutrients, minerals and trace elements that promote explosive growth and overall health. | Made from 100% natural, mineral-rich volcanic soil from Mount Aso in Japan and infused with beneficial nitrifying bacteria, Bio-Stratum is specifically formulated to provide immediate biological activity and maintain ideal conditions for a thriving planted aquarium. Characterized by its non-compacting 1 mm powder granules, Bio-Stratum allows plants with even the finest and most delicate roots to easily spread throughout the porous substrate while absorbing a powerful mix of nutrients, minerals and trace elements that promote explosive growth and overall health. | Collected from the mineral-rich foothills of Mount Aso Volcano in Japan, Fluval Stratum makes an ideal alternative substrate for planted aquariums and those featuring shrimp. |
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Zoorro-Editor-2025 –
Fantastic Result!
I used APT 3 on my 1st Planted tank after trying others with Fantastic result!
I recently used APT1 on my new 60P after a few Month Dark start, all Tissue Culture tiny plants and 42 days in plants are exploding! I also used APT Start, and plan on using all there products exclusively next including Feast on my next Aquarium.
I plan on switching to Sky for my Minerals.
Zoorro-Editor-2025 –
Wonderful!!
I have two tanks and the one I use Apt in is WAY fuller! Superior product, can’t wait to get apt 1 and apt jazz for my smaller tank!
Zoorro-Editor-2025 –
Quick and easy
Quick and easy to use and quality I dont have to second guess