Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Free Lunch / Eco Design - Aquaponic System

Free Lunch
Free Lunch

Fish waste in the form of ammonia, is turned into nitrite then nitrates by bacteria in water. When filtered through a plant bed the plants clean the water for the fish/livestock to live in. The system here is a 225L fish tank and will grow approximately ten 15cm plants per week, on a four-week cycle. Because the plants don’t grow in soil the system can utilize the vertical in cities space to grow food.

This project proposes that the discarded waste product from the existing aquarium service infrastructure should be used to grow food. this system is a prototype working towards giving office workers a free and sustainable lunch once a month.


Royal College of Art

Royal College of Art
London, United Kingdom


Designed by Rob Maslin

Designed by Rob Maslin
Ongar, United Kingdom