An entrepreneur is seeking investors to help launch a tropical fish tank that requires no filter cleaning or water changes.
Suzy Shelley, who graduated from Loughborough University in 2011, was inspired to create the revolutionary tank by her own experiences of keeping tropical fish.
The tank, Avo, is the result of three years of research and development and 18 months of testing.
Suzy said: "A well-maintained tank is the key to healthy fish, but that means frequent water changes, cleaning smelly filters and algae build up.
"I wanted to design something that takes the stress out of keeping tropical fish, to make it a simple, beautiful and above all enjoyable experience."
Suzy said her 15-litre fish tank featured a continuously moving bed that recycles older bacteria into plant food, creating space for new bacteria to grow.
Automated LED lighting is optimised for plant photosynthesis and growth, which promotes clear and healthy water.
Suzy has launched a crowd-funding campaign on Kickstarter to raise money in order to go into mass manufacture.
Supporters can pledge £5 to contribute to the campaign, or for £200, receive an Avo fish tank and starter kit for £150 off the recommended retail price.