This is slow-release fertiliser stick that you poke directly into your gravel under individual plants to target-feed.  It contains vital minerals like iron, calcium and potassium as well as the trace elements needed for vigorous plant growth.  Nutrients are stored in clay compounds and released over time.

Many of the deep-rooted aquatic plants absorb nutrients through their root system, so a substrate fertiliser is an ideal way to effortlessly target-feed your plants for months without having to lift a finger (or indeed get it wet).

Usage: 

Contains 25 root sticks which can be broken into smaller portions for smaller plants or used in batches to feed larger root systems, e.g. an Amazon Sword mother plant.