Aquaponics Filter is a practitioner's journal on closed-loop aquaponics systems. The writing here covers the mechanics of biological filtration, plant selection for nitrogen uptake, and the specific decisions that determine whether a compact aquaponics setup becomes self-sustaining or collapses in the first month.
The focus is desktop and small-scale systems. These are the setups where margins are thinnest and where understanding the underlying biology matters most. A 500-gallon greenhouse system can absorb mistakes. A 5-gallon desktop tank cannot.
Every article on this site is written from direct experience with aquaponics systems. No product reviews, no affiliate links, no sponsored content. The goal is to document what actually works, what fails, and why, so that someone setting up their first system can skip the predictable failure modes and get to the part where the system runs itself.
Topics covered include the nitrogen cycle as it applies to aquaponics filtration, grow media selection and bacterial colonization, plant species performance as biological filters, fish stocking ratios for compact systems, and troubleshooting common failure patterns in desktop setups.