FerretLover wrote:Thanks Indy

I wasn't sure if it had something to do with the amount of blood traveling to his fins or if it was just color changing...how awesome would it be if all his white turned to the pinky/salmon color! he'd be blue and pink! haha!
Kazoo: That would be awesome!

I don't know about other people cory's but mine are super active! As I was typing this all three of them used the front of the tank to swim from one side to the other! It was so funny! I think for a 10 gallon, since its a species tank, you could fit 6-8 Corys

But that's just my personal opinion
I would still keep a bit of an eye on him though. But like I said, I wouldn't worry. I've known a few people who've had their bettas change color.
kazoo wrote:Hmmm.... then I guess I'm decided that I'll mix species of cories until I get a total of 7. ^^
I love to watch Melvin and Gus(my two bronze cories) swim around together and would LOVE to see them travel in a larger group.
Although I realize that the top of my tank will long pretty empty.... another betta is out of the question because I have too strong of a filter and pretty harsh plants. /le shrug Cories are too cute. <3
I don't think cories will school with other cories species. They have an amazing ability to differentiate between species (Albino cories will school with those of their own species). Though they do greatly appreciate the company. It's similar to tetras. If you have two different species, they won't school, but they will enjoy the company of other tetras immensely. They might swim close to each other at times, but they won't truly school.