Land on "Fire"

Few months ago, all my different shrimps were wiped out due to some careless mistake I made - specifically using chemical to clear cloudy water. Since than, I decided to have a homogeneous "fire-red" only tank. Thus I started with a humble beginning - 10 Fire Shrimps (as shown in the top photo - two of which were seen loitering in an empty floor).

Many months later, the few humble "sparks" of fire I have started became wild and "blazed" my aquarium into "flame" of red. (2nd photo) and so are the creeping plants that never want to lose out in the race. However, not many of the shrimps resemble their ancestor (large shrimp with intense red color appears in 3rd photo)....hmmm...