This is Kelsey Kronmiller and her boyfriend's custom Super Mario Bros level themed fish tank (previously: this one that she got the idea from) The castles are made out of LEGO bricks. If I were a fish I would love to live in there. I am not a fish though, I am a gecko. I have two penises! *licking own eyeball* Wanna see me run across the ceiling?
Keep going for a couple more shots.
Thanks to E V I L A R E S, who is so evil he only has a fishtank to store the fish he buys from the pet store before cooking them.