i use inches and feet happily,not a silly question. im afraid in england we use inches and feet but most of europe use metric and we have adopted their measurements so now go between the two. thankyou for your nice comments all.
the anemone dosn't move around to much and i have had anem for years now, ive tried to frame with the rocks either side as him dosn't like them so much and prefers the glass, once and a while he does go for a walk about. of all the animals in the tank the anem is the most precious to me and when fully expanded nem is the main feature.