i had this 10G tank set complete with filter, gravel, bubble device, light n cover, plants, ect...
(get the picture?)
i also have some 7 young mollies in it, namely
1 balloon,1 sailfin, 1 lyretail, 1 black, 1 silver, 1 dalmatian, and 1 golddust (all are males) living peacefully.

since their all guys i thought i'd buy a female molly.
so i went to our local pet store.the pet owner told me they had a new stock of bloody red mollies and that he already reserved one for me since i bought lots of things from him. i asked him if it were a female and he said YES it is. so i purchased it and got on my way.

when i got home, i place the so called red molly in the tank. after a few minutes of adjustment, i noticed, i wasn't a molly at all! NOT A female either
it was an adult male swordtail with no sword (maybe a hybrid platy+swordtail)
it was very aggressive, it chased all my other fish and killed my balloon molly.i tried removing it from my tank but it was to fast that whenever i try to catch it, it would stressing my other fish because he goes in circles making a current like flushing a toilet.


i don't know what to do!!
help pls!!
the swordtail died... he jumped out of the tank and was accidentally stepped on..
RIP o.o

my mollies are ok now (whew)