Datnoids require space, like to hide in the shadows and they like dimmed lighting especially when they are young. You have to understand the history of the fish before you go out and buy them. A lot of the questions I see on this page are things you should know about Datnoids before you buy them. I just sold 5 Sumatra Dats that were 6.5 inches before I moved and now have 6 2.5 in Babies that I’m starting to grow. Can anyone explain how to set up the pictures on this site, would like to show my tank and fish..the url deal has me stuck.