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.
In July 2015, Luke Ellison, research supervisor at the U.C. Davis Fish Conservation and Culture Lab, places a protective cover over a tank of delta smelt at the lab in Byron, Calif. A new plan has been released by state and federal agencies to try to boost numbers of the tiny endangered fish, found in the Sacramento-San Joaquin River Delta. Rich Pedroncelli, AP When a coalition of California and federal agencies announced a new Delta Smelt Resiliency Strategy last week, the ambitious plan to save the regionâs nearly extinct fish grabbed headlines.