Guppy Fish Keep Dying!

[arfldt0201]

I'm new to fish. I just bought 3 new female guppied (all are pregnant). (My tank already had 4 Cory catfish, and 4 other male guppies). I've had the females for 3 days now. She started out as a basic colored fish, when she died ahe looked black. When she died she sat at the bottom of the tank for a bit kinda swimming around then just died.

 

[NickAu]

Hi and welcome.
 
In order help you we need more information, can you please answer these questions?
 

 
1. Water parameters. (ammonia, nitrate, nitrite, PH, temp', Hardness etc)
2. A full description of the fishes symptoms.
3. How often you do water changes and how much.
4. Any chemicals and treatments you add to the water.
5. What tank mates are in the tank.
6. Tank size.
7. Finally Have you recently added any new fish?
 
Request Help

Tank size:
pH:
ammonia:
nitrite:
nitrate:
kH:
gH:
tank temp:

Fish Symptoms (include full description including lesion, color, location, fish behavior):

Volume and Frequency of water changes:

Chemical Additives or Media in your tank:

Tank inhabitants:

Recent additions to your tank (living or decoration):

Exposure to chemicals:

Digital photo (include if possible):

http/www.fishforums.net/index.php?/topic/422952-start-here-with-your-emergency/

 

[NeonTetra97]

Hello, welcome to the forum!

 
Just a note about the Guppies, although I haven't kept them personally for over a year I remember having problems with bullying. And I believe this was due the the male to female ratio I had. If I remember right you should aim for more females than males in a 2:1 ratio so a minimum of 2 females to every male. You have 4 males so aim for 8 females to keep the numbers in balance, so long as the size of your tank permits this.
 
Also it would be interesting to know where you got the fish, from a breeder or a big chain store. And what test kit are you using to perform any water tests.