Dead Corys - Weird

[jpeterson]

Most my new corys have died but they seem to go White then transparent then the next day die! How weird? Any ideas in what it may be?

All other fish are fine btw!

 

[Twinklecaz]

What kind are they?

 

[jpeterson]

Bronze corys. One of them is going like this again, ill try get a pic!

 

[Skins]

How long did you have them?

 

[jpeterson]

A week today.

 

[jpeterson]

I have some pics of the last remaining new cory that is in the tank. All the rest are fine and having a great time Here are the pics........

 

[N0body Of The Goat]

What temp water are you keeping them in?
How "mature" is the cycled tank?

 

[star4]

The loss of colouration like that I would go for neon tetra disease or false neon tetra disease, I know it can affect fish other than neons, but I am not sure if it can affect corys? the only other one I could think would be Columnaris is there any sign of any ragged fins etc?

 

[zeke the black ghost knife]

poor thangs......

 

[jpeterson]

Everything is fine on the fish apart from the colour. I have noticed them rubbing against the sand and wood i have in there.

 

[star4]

Neon tetra disease is parasitic so could cause flicking/restlessness, I have no first hand experience with it I am afraid so cant really help further. Columnaris you would see fluffy growths on the fish. Best try Wilder in the emergancy section on this one

 

[jpeterson]

Np, its not a non-emergency topic now but ill post over there in case it effects my other fish. Although i have a strong feeling they had it already!

 

[star4]

Have you lost any other fish apart from the corys? NTD can be brought into your tank on another fish and it will then attack other fish and is normall fatel. I suggest asking Wilder because I have no experience with NTD it just sounds like what I have researched.

 

[jpeterson]

No i havent lost any other fish. I actually have black neons in the tank and they seem fine.

 

[jpeterson]

What temp water are you keeping them in?
How "mature" is the cycled tank?

Tank is about 78f and the tank is about 7 month mature.