In larger (10+ gallon) well furnished tanks, some people have successfully kept African Dwarf Frogs with bettas. These very small frogs grow no larger than the fish. However, great care must be taken to ensure that both the betta and the frogs are appropriately fed. Also, some bettas will bully the frogs and are not appropriate tankmates.
If you do want to attempt a betta/frogs setup, make sure your frogs are African Dwarf Frogs and not African Clawed Frogs; the much larger and more aggressive African Clawed Frog will probably eat your betta.
There's a certain type of fish and frog that can change their sex if no male is present.
It is a type of frog.
bullfrogs
Yes, there is a special type of frog that can do that.
Poison dart frog
Glass frog
Absolutely not, they are not capable to do so. it depends on the type of frog and their enviorment yes they can if you put a certain type of frog(can't remember the breed) in a group of all males the males will start to breed and thenboth males lay eggs
green tree frog
probaly about 10 11 or twelve unfortonly i have no idea.
Yes, crowntail females can mate with halfmoon males, and vice versa. Any type of betta can mate with any another type. Veiltails with halfmoons, deltas with crowntails, etc. But most people prefer to breed bettas with their own type because they plan to sell them, and most people don't want "mutts". They can also keep the coloration, finnage, and physical characeteristics of the betta type. It is much easier to sell these purebred bettas. If you planning on breeding the crowntail and halfmoon and selling, I highly suggest that you reconsider this. Get a two quality bettas (same type) from a good breeder. Enjoy your fish!
Pellets are generally considered better for bettas as they provide a more balanced diet and help prevent overfeeding compared to flakes.
What type of frog? African Dwarf Frog: yes.