Scraping muck and slime from the side of a tank, and continually cloudy water, annoys many fish owners.But now a young designer has created a fish tank that she claims never needs cleaning, the water never needs changing, and owners can save money bu never needing to replace the filter. The spherical tank only requires an owner to top up the water occasionally – and to feed the fish. Cleaning up: A young designer has created a fish tank that she claims never needs cleaning, the water changing, or a new filter. The spherical tank, called Avo, (pictured) only requires an owner to top up the water occasionally – and to feed the fish.Suzy Shelley, a graduate from Loughborough University, created the 15-litre tank, which is fitted with technology that enables fish, plants and bacteria 'to work together to create a balanced ecosystem'.The tank, called Avo, has a self-cleaning filter that ‘never needs replacing’.A continually-moving bed recycles older bacteria into plant food, creating space for new bacteria to grow.‘

Harmful ammonia, nitrite and nitrate are naturally removed from the water, meaning the water never needs changing,’ according to the company, called Noux. Crystal clear: A continually-moving bed recycles older bacteria into plant food, creating space for new bacteria to grow. ‘Harmful ammonia, nitrite and nitrate are naturally removed from the water, meaning the water never needs changing,’ according to the company, called Noux. The process is illustrated A bright idea: Avo features smart LED lighting that is optimised for plant photosynthesis and growth, which leads to clear water. It glows red in the morning, white during the day, and blue at night to look pretty in a room The plants and bacteria work together to create a balanced micro-ecosystem. The harmful ammonia, nitrite and nitrate are removed from the water meaning the water never needs changing.The filtration system is natural and self-maintaining, comprising a moving bed that doesn’t need cleaning. When there is too much light, fish tanks get algae.

Avo's lighting is plant-specific, providing the wavelengths that the plants need to photosynthesise and grow, making sure they are cleaning the water efficiently. It produces wavelengths of light that our human eyes can't detect.The light moves around the tank and is magnetic, so can be detached to access the fish and plants easily. Water is heated at 27°C (80.6°F) - the perfect temperature for tropical fish. The heating elements are positioned to create convection currents which help the nutrients reach the roots of plants.Seven plant pots slot into place in the filter system to make them easy for owners to lift out and trim. The tank holds three-and-a-half gallons of water (15 litres). It is available to pre-order from £150 ($242). Avo features smart LED lighting that is optimised for plant photosynthesis and growth, which leads to clear water.The lighting is soft red in the morning, white during the day, and blue in the evening.The tank is designed for tropical fish with a constant water temperature of  27°C (80.6°F).

The plants are housed in seven trays so they can be easily maintained and moved around to change the look of the tank. It has taken Ms Shelley over four years to develop the tank, which is now raising funds on crowd funding website, Kickstarter.Avo can be pre-ordered from £150 ($242) plus shipping and the tank is due to be shipped in July next year.So far, £45,000 ($72,669) has been raised out of her £60,000 ($96,892) goal, with 52 days to go.‘fish tank online chennaiI've always kept fish and it was a steep learning curve in the early days - trying to maintain a tank properly, making sure my fish were healthy and had a clean tank,’ Ms Shelley said.‘fish tank online shopping chennaiFish keeping isn't as easy most people think…there's important bacteria in the tank that need to be maintained, plus there's the weekly water changes and smelly filter cleaning needed to maintain a healthy tank,’ she wrote on Avo’s Kickstarter page.‘marine fish tanks for sale in hampshire

I decided I'd design something that takes the stress out of keeping tropical fish and makes fish keeping simple, beautiful and above all enjoyable.‘Avo is packed full of technology and clever design features that make it really, really easy to keep fish.’ Suzy Shelley (pictured), a graduate from Loughborough University, created the 15-litre tank, which is packed with technology enabling fish, plants and bacteria 'to work together to create a balanced ecosystem'View a quick troubleshooting video on common questions and problems with growing Aqua Dragons: Are they really alive? YES YES YES, the Artemia Salinas are live living organisms and they need you to care for them. Go to the What is an Aqua Dragons section for more information. How long will they live? An Aqua Dragon reaches adulthood in the 4th week of life and are capable of reproducing from this stage. An average life span would be a couple of months. A well cared for tank can see multiple generations of Aqua Dragons growing but on average we hear from Aqua Dragon owners that they tend to maintain life in the tank for a few months.

Do I have to change the water? No, the water has a special ph and salinity level that is established by the contents of the eggs sachet, so don't change the water! However the water does evaporate so you can fill up, slowly using room temperature bottled water in small quantities each time. Do Aqua Dragons like sunlight? Yes they love it, just make sure you don't leave them in the direct sun where the water would overheat! Do Aqua Dragons bite? NO, actually they don't have a mouth, they eat through their wings which work like gills. What temperature should the water be? The best temperature is from min 17ºC to 30ºC What do I do if one of the dragons dies? He will float down to the bottom and slowly biodegrade and form part of the habitat, so its not necessary to take him or her out. The water is dirty what do I do? Stop feeding until the Aqua Dragons have had time to process all the food in the tank. This could take a week or so for the water to come clear again but it wont go off, because its salty!

I see a dead Aqua Dragon at the base of the tank... It could be an Aqua Dragons exoskeleton which they shed various times in their life, or it could be time for a funeral. The life cycle includes death. Some of my Aqua Dragons seem to have a very very long tail, why? Actually just like with fish, this is the excrement that sometimes forms a string. Can Aqua Dragons live in my regular fish aquarium? As they are small, regular fish will eat them, so unless you want your new pets to turn into fish food, NO! I see two Aqua Dragons swimming together, whats happening? They are mating, you will notice the male is below and grasps the female with some antenna like protrusions that sprout from his head. They may stay like that for a few days until they are "all through". I've lost the instruction book, what should I do? Email us for a digital copy or follow the instructions online. How many Aqua Dragons should hatch? A difficult question, it depends on the water quality, the temperature, the number of microscopic eggs that were in the packet, so could be between 10 and hundreds!