The first Black Smoke cat was seen in the 1800s when, according to some theories, a tabby with the gene for black markings bred with a silver-white coated cat and the two colors layered on top of each other in the kittens.
Only about 1 out of 3,000 Torbies are males due to the fact that the chromosome that creates the Tortoiseshell color is only in the X chromosome.
Water quality Unlike much other fish, Corydoras can tolerate polluted water conditions such as cloudy and muddy water.
This species is considered highly adaptable and has been identified in the Gulf of Mexico, and they are considered invasive in Texas.