Sudden Death!

[jappy1984]

My female swordtail had just pass away today.. sad... she was a mother on 24th june'09 she was fine until last nite!!!! She started avoiding food, keep hiding behind the little castle, and today morning while i decide to do a weekly 20% water change i found her dead at the bottom of the tank where she was hiding!! I pick her up, and i notice there's red patches around her body... At first i wonder if it's fight wound, but she cant be bully, only she bully other fish because she's the biggest size of them all... She was the only fish that is about 5-6cm in length while others range from 2-3cm... Wonder if it is a disease?? anyone have the same problems like this before??

Cheers
Jappy

 

[lordofthesea]

tank size?
tank mates?
ammonia, nitrite and nitrate levels?

 

[jappy1984]

tank size?
tank mates?
ammonia, nitrite and nitrate levels?

Tank size is 2ft x 1ft, tank mate, 3 swordtail, 3 female guppy n 2 male guppy, 6 red n pink zebra danios... nitrate all normal.. or i can say average... normally is the past away female whom bully them lol... But the red spot on her body make me feel bad/scare..... any idea??