Blue Spot

[OMA]

I'm fairly new and have currently got a 100 litre tank, which has become stocked with lots of guppies, of assorted breeds. i bought 7 and a week later i have 20 (randy buggers B) )

One of the fish is a wierd breed called a lyretail guppy as best as i can identify him.
http/www.liveaquaria.com/product/prod_Di...cfm?pCatId=1896

Problem is when i bought him he only had colour of two orange spots and a very nice blue body at certain angles.

A week later he has the same but a lot more vibrant and is doing dances for the lady guppies with two dark blue spots as well. These blue spots are the problem THEY WEREN'T THERE BEFORE .

Are there any infection or anything that could cause this or does he look even cooler than before, just because he is that cool.

If a pic is required i'd be happy to send one.
Thanks

 

[WILDER]

Just keep an eye on the spots but never heard of blue spots on fish, just observe him to make sure they don't change, good luck.

 

[OMA]

It appears that they're meant to be there, they are on both sides of him. but thanks anyway