Wierd Observation(white spot on fish's heads)

[gfink]

I have 5 cardinal tetras. I noticed that 2 of them had a white spot on the top of their head. The spot was in the same place on both fish, and was so symmetrically located I justed assumed it was part of their anatomy. It was a bout the size of their eyes. Well, less then a week later and I just notice that none of them have a spot anymore.

What could it have been?

I've only owned them for 2 weeks, so maybe it was an injury from the store that healed.

0 ammonia, and they saw a max of 0.4 ppm nitrites as I had a mini cycle. Nitrites are 0 now.

 

[Fishyfanatic]

Could it have been ich?

 

[gfink]

From the descriptions I have read of ich, I don't think that was it. Size and specific location on both fish also sort of eliminates that.

 

[Fishyfanatic]

Try searching this site and see if you can find anything about the spots. They are good with diagnosing fish diseases.