Grow fresh produce right in the comfort of your own home - beans, basil, thyme, baby greens, oregano, mint, parsley, spinach and so many other delicious foods! This closed-loop ecosystem uses the fish waste to naturally fertilize the plants above. In turn, the plants clean the water for your pet fish.
"When they made this particular hero, they didn’t give him a gun, they gave him a screwdriver to fix things. They didn’t give him a tank or a warship or an X-Wing fighter, they gave him a call box from which you can call for help. And they didn’t give him a superpower or pointy ears or a heat ray. They gave him two hearts. And that’s an extraordinary thing. There will never come a time when we don’t need a hero like the Doctor." - Steven Moffat