i have just got 3 more swordtails so now i have six the reason for this is that i had one female to 2 males so i now have three of each so i hoped it would stop them badgering the female but these new ones are not mixing with the new and the two males are still continuosly fighting any suggestions? he is a silver swordtail and the other is pineapple but the female is also silver? will they kill each other?