That is how they look in real life, not macro life. Sure the blue dots are small and you wouldn't notice them standing 10 feet away from the tank but thats what they look like with all the lights on. That shot is taken about 2 inches from the glass and the rock is about another 5 inches further back in the tank. The rock is about 6-7 inches by 4 inches and is full of orange zoos and mushrooms.
cheers