Yes all bettas can mate with other bettas. " regular betta fish" there are different types and they can all breed together.
Yes how do you think the multicolored bettas came to be the fish are still bettas no matter the color they are.
Some types of fish that can live harmoniously with bettas are peaceful, non-aggressive species such as neon tetras, corydoras catfish, and ghost shrimp. It is important to consider the betta's temperament and tank size when choosing tank mates.
Boy bettas have really big fins and are very colorful, and girl bettas are pretty much the opposite!
Male bettas come in many different colors. Purple, blue, green, white, black, red, orange and so on. They will also display more than one type of color (i.e. red and blue mixed). Bettas are not identified by color for their sex. Instead it is an appearance. Males have long flowing fins while females have short unremarkable fins. There is however a short fin male which closely resembles a female. They also have many different types of tails and fins, from half-moon, crescent, crowned, ect.
Bettas originate from Southeast Asia.
Male bettas should be kept alone. Female bettas can sometimes be kept with other fish, but in a large community tank. Bettas need their space!
bettas are very territorial fish, the males fight for their territiory.
the same as all the other bettas
Bettas will eat baby guppys as will most other fish, but in general, male Bettas will only fight with other male Bettas. They do not fight with other species of fish
No, it is impossible. Goldfish are coldwater and have different spawning techniques than bettas.
No. Only Bettas can breed with Bettas. You are basically asking if the crossing of different species can happen under normal conditions. The answer is still no. It is like trying to cross a cow with a dog. Can't be done.