my gourami changed colour overnight

[scorpi0n]

been trying to find some info on this and i have been told a few things:

they change colour when they partner up and are ready to mate. (only one has changed colour a female blue)

thier true colours come out after a while because they are in a more relaxed inviroment compared to a shop.

just wondering if any of this is tru or it is another reason. ill try post a pic soon of colour and pattern change soon

ImageShack - Hosting :: fishdk5.jpg
*these are two different fish but were pretty much identical at time of purchase
click the pic to enlarge it

 

[CAPSLOCK]

These are opaline gouramis - mine does the same thing. Normally looks like the bottom picture, kind of washed out appearance. If she's startled or scared, she gets that darker coloring (to blend in?). I think she's also a bit darker at night.

 

[skratikans]

perhaps the color change is due to stress, they appear to be both females...so maybe one is harassing the other

 

[scorpi0n]

thanks for the info , ill keep an eye on them

 

[MadridKid]

Was your fish in a stressful situation? If so that could definately be the answer to the color change...I have seen several fish turn different shades and colors,especially after i rescued them from friends who didn't care for them. Also, did the color change happen on the whole fish or the gills?