Megan8724

I have three albino corys in my 20 gallon community tank. I checked them just now and one of the cory's stomachs is completely dark. I don't think these are eggs or anything. Could it have been something he/she ate?
It looks alot like a bruise, which is really weird.

What is this?

Sabi

I dont really know... Did you just feed them? How big are they?

Megan8724

I've looked at them again this morning and it's just the one with the dark belly.
It looks like a bruise.

This cory is fully grown, almost two inches.
Water perameters are still good.
He/she is still eating well and is just as active as ever.

Narcicius

You might want to quarintine until you know for sure its a bruise.

Megan8724

I've quarintined the cory. I honestly don't believe it's a bruise. That's just what it looks like.

Narcicius

Try to research common fish freshwater fish diseases to try and locate anything with that symptom.

Sabi

How is he?

FishPerson

can you post any pictures?