I have two female siamese fighters, one just recently died, but i got another about a month or so later to take her place and my old siamese still isn't getting along with my newbie. Its been about 6 months now, and louise (my first betta) is such a grumpy fish, she's always picking on every new addition to my tank! I recently bought 5 guppies, just for colour, and it took her 3 hours to reduce them to 3 guppies, and 4 days later i had none!! is this normal, or is she simply extra sensitive?? Im thinking of getting some freshwater butterfly fish, but as they are relatively inactive, im concerned louise will try her usual stunt and nip their fins. should i be concerned?? should i think of giving her a time out in isolation?