Yellow Tail Damsel color difference normal?

[lespaul339]

Is this normal? One of my yellow tail damsels is much lighter blue than the other one. I've never kept them before and was wondering if it's normal for their color to be that different from one another? It hasn't shown any signs of disease or anything and is eating good and active. Sorry for the bad pics, they are in a tote going through TTM at the moment.

 

[pinnatus]

They can change their color based on their mood. Dark blue is usually angry mode.

 

[lespaul339]

Well the one must be angry then. So far no major aggression though. I got two of them hoping they'd pick on one another rather than harass the other fish in my tank. I know with Damsels there is always that chance, but I want the blue in my tank. There is also a Royal Gramma in QT with them and they pay no attention to him.

 

[lespaul339]

So, this morning when I turned the lights on they were both the same color. It must be because of his mood on why he darkens up more than the other one.

 

[pinnatus]

They can get almost black if they want to.

 

[Shivsreef]

Yellow tail blue damsels are one of the least aggressive damsels imo if not the least aggressive! Although bear in mind each individual is different.