If you are talking about Siamese fighting fish, which are also known as betta fish, full grown males body length is about 1.5 inches (4 cm) give or take, not including the tail fins. Tail fin style can vary greatly adding anywhere from a quarter inch to over one inch.
They are spawning.
there black
in male fighter fish there is very deep colour and in female there is very fead colour female have a egg sack but males dont have
no way! they cant because chinease fighter fish are semi aggresive and will fight with your other fish or if the other is to big the gold fish will eat him
yes the female fighter has eggs before she meets the male, when they meet and do there business the female will release her eggs and the male will fertilise the eggs
The mature male has brighter colours and larger flowing fins than the female.
Male bettas will fight other males for no reason. you should never put 2 males together.
Male betta fish tend to be very aggressive. They are best alone unless theres a special type of specie they can get along with. They like to have personal space. And as using fighter fish you probably refer to Siamese fighting fish which is betta fish
If she doesn't spawn with him he will kill her. After she has spawned with him he will kill her. Male Siamese fighters (Beta splendens) will attempt to kill any other of the same species in its environment except for the short time when he is either courting or breeding.
you need to seprate them or they will kill each other!
how to take care of egg when fighter fish male die
You provide the male fish with optimum water conditions for its species. He will care for the eggs (ova) and look after them until they are free swimming.