One of my baby male guppies (a couple of months old) is developing his
colour nicely. Dad was a snakeskin colour, Mother had a pretty yellow
and black tail.

In addition to his developing snakeskin pattern this guppy has 2 large
spots on one side and on on the other that change color rapidly.
Sometimes they are dark inky blue and sometimes they completely
disappear. Just a couple of minutes ago they were very dark. I fed the
fish and now his spots are much paler.

What's going on? I've decided to name him Chameleon!

Judy