Dead Cory

[aaronc]

Hi All

Added my fish to my fully cycled tank on thursday and I have my first casualty.

Any ideas what might have caused it

Info Below

Tank size: 125l
pH: 6.8
ammonia: 0
nitrite: 0
nitrate: 5-10ppm
kH:NA
gH:NA
tank temp: 27c

Fish Symptoms (include full description including lesion, color, location, fish behavior):
Found the cory dead lying on the bottom. It has a red mark near its tail on one side, doesnt look like it has broken the skin, looks more like blood under the skin

Volume and Frequency of water changes:
Tank has only had fish since thursday, but I aim to do 25% weekly

Chemical Additives or Media in your tank:
Tetraplant fertiliser

Tank inhabitants:
5 Corys
4 Clown Loach
8 Congo Tetra

Recent additions to your tank (living or decoration):
As above

Exposure to chemicals:
None

Digital photo:
To follow

 

[Rhiannon]

I have read a few posts on here lately about cory's dying and people seeing a blood streak under the skin.

This is what happened to my angel when she passed.

Hmm..

 

[Sibelius]

Very strange, water quality seems fine. Bruising from physical damage? Is your decor sharp or could it have got stuck? Check your clown loaches aren't too aggressive. Tetras won't have been the problem. Otherwise it could be viral or bacterial, sorry I can't be of more help. Maybe a photo will ring a bell in another members head. (or mine!)

 

[WILDER]

Sorry septicemia blood poisoning, hard to cure once it has advanced.

 

[paulf]

Why is the temp so high? lower it to 23-24c would be an idea.