The fishes are about 6-8 inches. The tank is 94 gallons, and yes it lacks some background and some green plants. i took out the black background which is made out of black illustration board which rotted out for some time. I hardly maintain live plants, either they die bec of lack of lighting in my office or the fishes would accidentally uproot them. So i switched to the fakies, hehehehe. My tank seems kinda very bright, but it might just be with the camera exposure. My light is only good for a 20 gal tank plus some room light and some sneaking day light from my office window. i dont leave the lights 24/7 or sometimes i'm too lazy to turn the lights on.