Yes they should be OK provided the tank is big enough and there is plenty of cover. You should have a minimum of 10 gallons of water for 2 female Bettas.
When a female Betta is introduced to a male Betta one of two things will happen. The male will build a bubble nest and try to spawn the female and during the courting time he will drive off any other occupants of the tank and kill them if they can not escape (hide successfully). He does this in order to protect his prospective young. If she fails to spawn he will drive her off and kill her if she is not removed. In other words you can not keep a male Betta with another Betta (male or female) without trouble. The Tetras will be perfectly OK with a Betta female OR a Betta male. Not the two (pair) that you are proposing. The general rule that all experienced and successfull aquarists live by is a fish needs 1 gallon of water per inch of body length. Work it out.
The problem will not be the tetras coexisting with the Bettas. It will be the female Betta. She will undoubtedly be killed by the male. He may well spawn her first but afterwards, if she is left in his presence he will kill her. Also if he has ova or fry to look after he will kill the tetras in defence of his young.
Yes, betta fish can generally coexist with snails in the same tank as long as the tank is large enough and the water parameters are suitable for both species. It is important to monitor the behavior of the betta fish to ensure they do not harm the snails.
Female beta is a murderer.
Male betta's are more colorful then female's
From a female Betta. Then the male Betta fertilizes them when they breed together.
Yes, snails can generally coexist with betta fish in the same tank as long as there is enough space and hiding spots for both species. It is important to monitor the tank conditions and behavior of the fish to ensure they are getting along.
Your betta fish is a female if she has smaller fins than an average male.
If they are not too old and the female is ready, then they will mate.
She breeds with a male Betta Fish.
it depends i have a male with a female betta, in a 2.5 gallon tank,they get along, i wouldnt risk it, no
the female betta fish are released from a vent while a male embraces her