I have seen multiple pictures of rainbowfish online, all of which have what I thought was a stress stripe when it was on mine. I wanted to know if this is a stress bar and if it is why are they so prone to stress? And if it isn't, why is it that my rainbowfish stripes will come and go, but will usually be visibile. Heres an example:
I have noticed on my rainbows that there colors fade when they display this stripe (which is what I thought a stress sign), and I saw from another forum member today the same thing! I have also kept threadfin rainbows and they didn't have any of that stripe. I am wondering if its just usually on "bigger" rainbow species. Maybe its just the Rainbow Fish genetics?