Definition of theory. plural. theories. 1 : the analysis of a set of facts in their relation to one another. 2 : abstract thought : speculation. 3 : the general or abstract principles of a body of fact, a science, or an art music theory.
Studies have also shown that those Betta Fish which live in larger tanks will probably live much longer than those who are cooped up in smaller tanks. In fact, if you are purchasing any tank you should always purchase the largest that you can both afford and fit into your room. This is going to benefit all of your fish. Hopefully this has been of some use to you and provide at least a couple of answers as to how long does a betta fish live.
Butterfly fish Facts. Butterfly fish is a type of marine fish. There are 120 species of the butterfly fish that can be found in tropical and subtropical regions of the Indian, Pacific and Atlantic Ocean. Many people keep them as pets, which is not very simple because they require specific conditions of water.utterfly fish is an omnivore (eats both meat and plants). It eats different types of algae and seaweed, worms, small crustaceans and zooplankton. Butterfly fish usually swims in the shallow water (up to 65 feet), because it eats animals and algae that can be found in this section of water.