Guppy died suddenly

[Owp]

I have a 25 litre tank which had 4 guppies and 4 neon tetras, I only got them a week ago and one has died very suddenly. I found the fish attached upside down to the Anacharis plant. The other fish seem to be ok and the guppy never got chased as far as I’m aware. I have tested for ammonia and none is there but I’m yet to test for nitrates and nitrites. There are hiding places and live plants. Does anyone know why this happened?

 

[Owp]

I tested for nitrate and nitrite - nitrite was 0 but nitrate was above zero but very low. I did a water change. Does anyone know why the guppy may have died

 

[charlie2y3]

Maybe It had a internal parasite that it contracted from the pet store?

 

[Toad]

Did you cycle the tank before adding fish? Cause that can kill them quick, plus that tank is too small for those fish and that many :/ I'd get a test kit asap, and read about fish in cycling.

 

[Owp]

Did you cycle the tank before adding fish? Cause that can kill them quick, plus that tank is too small for those fish and that many :/ I'd get a test kit asap, and read about fish in cycling.

I cycled the tank for a week which I have read isn’t long enough, I do have test strips already. Thanks for the help

 

[Potluck]

I cycled the tank for a week which I have read isn’t long enough, I do have test strips already. Thanks for the help

Get an api master liquid freshwater test kit if you can, test strips are inaccurate, also it takes longer than a week for the actual aquarium to cycle you'll know if you get the API Master freshwater test kit you'll get 0 ammonia 0 nitrites and 5-20 ppm nitrate

 

[Owp]

Get an api master liquid freshwater test kit if you can, test strips are inaccurate, also it takes longer than a week for the actual aquarium to cycle you'll know if you get the API Master freshwater test kit you'll get 0 ammonia 0 nitrites and 5-20 ppm nitrate

The reason why I buy test strips is because master test kits are expensive. I hadn’t read about cycling before I added the fish but in future I’ll make sure I will. Thanks for the help

 

[Owp]

Get an api master liquid freshwater test kit if you can, test strips are inaccurate, also it takes longer than a week for the actual aquarium to cycle you'll know if you get the API Master freshwater test kit you'll get 0 ammonia 0 nitrites and 5-20 ppm nitrate

I might try getting the api master test kit though how long does it generally last.