I discovered something interesting..
As it turned out, something did change.
I recently got a nice glass hood that replaced my cheap black plastic one that just had 6 white LEDs..
To go with it, I got a nice high tech light that is great for my plants.... with may white LEDs and a few red and blue ones..
The light has many different settings including a few brightness levels
Long story short..........
At first I had it on one of the brightest settings.
i eventually realized that maybe they do not like that bright setting
So, I bought the brightness down a bit and now they are now really peacefully schooling etc.. I discovered this just by experimenting. .
Even the Rasboras are more peaceful..
if their natural habitat is somewhat brackish water, that might explain it..