Betta fish come in many colors including steel blue, royal blue, and turquoise blue ... so it’s best to keep at least two females for every male guppy in your tank. We recommend a tank size ...

What is a betta fish? Betta fish—also known as Siamese ... or brown. Before mating, the male spends hours blowing bubbles at the water’s surface to build what’s called a mucus bubble nest.