Platies changing colors?

[ryanoh]

It's been a while since I've posted, but I think that's mostly because things have been going well with my tank. : )

A while ago though I noticed one of my mail platy's tails was slowly turning red, and I internet-diagnosed it as some sort of fungus. I treated the whole tank with a few different anti-fungal remedies for about two months and it didn't seem to get any better. It wasn't getting any worse and seemed to stop at just his tail fin, and he wasn't acting any different, nor was it spreading to any other fish so I decided to just let it go.
This past week I've noticed a female platy of mine's body is changing from blue to a kind of yellow/gold. I'm not sure if its related to the red fins or what.

I know goldfish's color changes as they grow just from watching my goldfish, but I wasn't aware that platies did this. Do platies do this or is something serious wrong? I can get some pictures of anyone thinks this would help diagnose the problem, but I don't really have any from before the changes, and I almost feel like just seeing the after pictures doesn't really show that anything is wrong because the fish don't look "wrong."

Help?

 

[achase]

I would post some pictures.

From what I understand (through google - reading other fish forums) color change is somewhat normal for fish as they get older unless the color change looks like internal bleeding. But then again google could be totally wrong so hopefully someone else will come along with more platie experience. Plus if everyone is acting "normal" then I wouldn't be too concerned.

 

[ryanoh]

Yeah, I was worried that the tail thing was some sort of fin bleeding, but like I said, it hasn't gotten any worse or better. The blue fish turning yellow definitely doesn't seem like that would be caused from any sort of blood.

I'll get some pictures tomorrow. I don't want to turn on the light and scare my pleco away since he just came out to eat and he's so skittish.