APT 3 takes the guesswork out of planted tank nutrition. Where most fertilizers ask you to juggle separate bottles for macros and micros, APT 3 brings everything together — nitrogen, phosphorus, potassium, magnesium, iron, and a full spectrum of trace elements — in a single daily dose that actually works.
What sets it apart isn't just convenience. APT 3 is three times more concentrated than conventional all-in-one fertilizers, with components formulated for up to 50 times greater bioavailability across a wide pH range. That means your plants absorb more of what you're dosing, and you see the results. The relatively lower nitrogen ratio is deliberate too — it encourages richer, deeper coloration in demanding species rather than pushing raw growth at the expense of aesthetics.
It's the fertilizer of choice for award-winning aquascapers across more than 20 countries, and it earns that reputation in tanks of every kind — from compact nano setups to sprawling 400+ liter displays, with or without CO₂ injection.
Dosing couldn't be simpler: 3 ml per 100 liters daily, with a 30% water change each week. A 300 ml bottle with pump lasts around three months in a 115-liter tank; a 500 ml bottle covers roughly the same period for a 190-liter setup.
APT 3 sits in the middle of the APT lineup — more complete than APT 1 (designed for fish-heavy tanks with no added nitrate or phosphate) and more approachable than APT e (built for high-tech, EI-method setups requiring CO₂). If your aquarium leans toward plants over fish and you want reliable results without a complicated routine, this is where you start.
For even stronger plant performance, pair it with APT Jazz for root-zone feeding in established aquasoil. If algae show up, APT FIX handles them. And APT Pure keeps your water conditions clean during water changes.
