LINK: This clean enough, Ray? Staff at London Aquarium don scuba gear to scrub tanks

Most of us dread the idea of having to do a big spring clean. But when scrubbing and brushing is done in the company of fish, string rays and giant turtles, it doesn't seem so bad. Staff embarked on the Sea Life London Aquarium's annual deep clean, hopping into the tanks to scrub, scrape and wipe down the watery habitats.

You've missed a bit: Aquarist Ross Davey gets company from a sting ray as he cleans their pool

Graham writes: When I saw this story, I reflected that it was all a bit different to my fish-tank cleaning activities at the CFZ. I see, from the photos, that these people use tooth-brushes, though - just as I do. But the tanks at the CFZ aren't big enough to require diving gear!   

Read on...