Aggressive Siamese Fighter

Question
I have a 6 gallon tank with a community of a dozen fight.  I am having problems with the Male Siamese Fighter which I bought yesterday, introducing him to tank I found that he will not stop attacking the much larger Black Moore that I have had in the tank.

Does the Fighter confuse the poor black moore for another male Siamese Fighting fish ?  

Answer
Yes, they don't call them Siamese Fighting Fish for nothing! They are a poor choice for a community tank, that's why they are usually found in small tanks all by themselves.

Maybe the fish store will exchange the fish for something more friendly. Perhaps a new Black Moore to replace the one that has probably just been killed.

Good Luck Alex,

Chris Bushman
North Hollywood, California