You have to treat it with special care and don't let it lose color or else it will die.
I would probs say a Betta fish because of their color
Betta fish change color by there environment and the types of food that you feed it. If your Betta fish is loosing color that means that your Betta is sick.
white
Betta fish derive their color from refraction within a layer of translucent guanine crystals.
The betta.
The signs of a healthy Betta fish are bright colors, no torn fins, good appetite, very active and it occasionally sleeping. Signs of a un-healthy Betta are torn fins, loss of appetite, losing color,less active very sleepy, and sometimes white eyes. Things that cause this are disease from new fish or dirty tanks, crowded tanks, or other fish.
Yes. Betta Fish do change their coloer every now and then. Or if you have a male, he will change his coloer if hes chaseing a female Betta Fish. Or if he sees another male Betta Fish.
why would you want to kill a betta D:
Yes a light is healthy for a Betta, they need lights for warmth (the light will heat up the water) And Bettas get sick easily so without warm water they will get ill and lose there color and become a gray color.. Which is not pretty.
Male betas are colorful and have large fins. Females have virtually no fins and have no color
I would say they may have been good fish to start. But I know the Walmart by me neglects their fish and I would never buy one from them. When you are selecting a betta be sure to look for good color, clear eyes, smooth bodies and no protrusions.