This week, an ingenious solved problem that also helps to make aquariums greener, the NoClean Aquarium! Friends Craig Wenger and David Turover loved fish but hated cleaning tanks, and so spent years creating a sturdy and attractive glass tank that collected waste on the bottom and then drains the dirty water when you pour clean water into the tank. The result is super easy and good looking, but also never requires electricity for filters or even gallons of water used to clean your fish tank before you fill it back up. This is an awesome solution that saves energy, time, and inconvenience just by virtue of its smart design. They have a extremely successful Kickstarter, where you can still contribute to preorder an aquarium, with a video about how it works.