Hi Hip,
Well the whole color changing thing is no surprise but I've only had one young albino. You can really tell mood changes with tigers. I find when they are really happy and stress free they will turn a deep black again like they were when they were small. Red will look nice too on the balck contrast. When in spawning mode, it's almost liek they catch on fire, all the black goes and they turn a greenish pale , black around and the red within eyespots intensify etc...it's really great watching their rituals.
Joe
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