They sure are! What I also like is the fact that you can clearly see that the espei occupy the higher regions of the tank and the simulans swim a little lower. Something which wasn't even visible in my 100G (20 inch of water). The pencils are also always fun, they swim in all layers in small groups 10-15 and always close to plants (protection). They do feel a little shy because of that... until feeding time! Nothing shy about these fish!