I have a friend with a Plec who measures over a foot in length. He is starting to listen to me that his tank is too small. I am upgrading to a 540 litre in the next couple of months and he asked if my old tank would be enough (100 litre) I explained why it wasn't near enough, so he has now started shopping
My favorite shot - a macro shot of a peppered cory. The algae is only like a half inch on the glass, but b/c of the angle of the shot, it looks worse than it is.