Peppered Corys Gone Almost Black?

[CluelessScot]

Hi all,

About 3 weeks ago i changed my tank from sand to gravel. The gravel is black and really fine, exellent for planting so i have read My big corys were really pale and yellowish when i had the sand but now i have converted they have went really dark and i was wondering if this ment they are unhappy or ill or just fine? ill try getting a pic asap but the cameras on the blink.

Thanks

Kev

 

[WILDER]

Do you mean they have darkened in colour if so it's a sign of a bacterial infection which corys are prone too.

 

[CluelessScot]

hmm sounds real bad... anything else i should be looking for?

 

[Captain Retardo]

perhaps they changed their color to blend in and escape predation. This dosent mean that you have predators in the tank its just an instinct. But thats just what i think, you could take it with a grain of sand, or a grain of gravel.

 

[The Devine One]

My Peppered Cories came out of a tank with light coloured gravel and into my tank with black gravel and they got alot darker as well so I wouldn't worry about it too much I think they are just trying to blend in with their enviroment, but keep an eye on them just in case.

 

[smithrc]

Sounds like they are just trying to blend in - Ours did this recently too - I posted a picture on here somewhere....

 

[CluelessScot]

thanks for the replys i hope thats whats going on. Looks good anyways lol