N Boost 2000ml – liquid nitrogen

AF N Boost is a liquid nitrogen fertilizer for planted aquariums, aimed at keepers who need to supplement nitrogen to support growth, branching and leaf colour. Its dosing is measured in ml per 100 l, which makes it straightforward to calculate how much a given tank needs.

Why it matters

• Dosing with a known effect: 10 ml dissolved in 100 l of water raises nitrate by 9.5 mg/l, so the increase can be predicted for a given volume.
• Nitrogen in two forms: the product supplies mineral nitrogen as nitrate and ammonium, the forms plants take up from water.
• Target range: the recommended nitrate level in a planted aquarium is 10–20 mg/l, and the fertilizer is used to reach it.
• Deficiency and excess both matter: too little nitrogen stops growth and causes yellowing and chlorosis, while too much produces soft, dark-green plants that are more prone to mechanical damage.

Specifications

• Volume: 2000 ml
• Weight: 2.3 kg
• Nitrogen form: mineral nitrate and ammonium
• Dosing: 10 ml per 100 l of water, raises nitrate by 9.5 mg/l
• Recommended nitrate level: 10–20 mg/l

What it works with

The fertilizer is intended for planted aquariums where nitrogen is the limiting nutrient. The manufacturer recommends using it alongside AF Micro, AF PO4 Boost and AF K Boost. Do not combine it with other nitrogen-containing products, as this risks over-fertilizing plants and triggering algae blooms.