Betta fish sleep at night or when it is dark. Since they do not have eyelids, betta fish sleep with their eyes open. They often look pale when they sleep. More » Pets & Animals Marine Life Fish

Petco's Betta Care Sheet lists loss of color or appetite, spots or fungus on the body or mouth, listlessness, and labored breathing as major red flags to watch out for. The care sheet suggests testing the water quality o... More » Pets & Animals Pets Aquatic Pets

To find reliable information on betta care, visit pet store websites such as and consult the betta FAQ on As of 2015, Petsmart offers basic information about setting up and maintaining betta envir... More » Pets & Animals Pets Aquatic Pets

Betta fish changing color is known as marbling and is due to a genetic trait that determines the fish's color; it allows the fish to change coloration from one day to the next. The jumping gene can affect coloring and th... More »

To care for a Betta fish, a person will need to be able to create a proper living environment for the fish, feed the fish appropriately and ensure that all male Betta fish are kept away from other Betta fish (the males a... More » Pets & Animals Marine Life Fish

A crown tail betta is a type of Siamese fighting fish with spectacular fins and tail. The huge tail and fins seem divided into the points of a crown and have intense colors. One type of crown tail betta has a split tail,... More » Pets & Animals Marine Life Fish

With proper care and treatment, Betta fish usually grow back their fins in 4 weeks. This is true especially in cases of tail rot, where the fins will fray and shorten. If left unchecked, however, tail rot may deteriorate... More »