What would make a BJT go blind?

[ZoWhat]

This past week my BJT has gone completely blind. It swims around the tank and bumps into everything. I know its blind bc when next to the glass and I wave my hand in its face.....nothing, no reaction. Along with the continual bumping into glass, rocks, etc

It now hangs out at the waterline and when I feed food it smells it a randomly skims food off the waterline that's floating....i.e. Formula 2

All other fish are ok.

All water parameters are ok.

I do have a LED lightstrip that produces UV 390~405nm UV light. I have enough UV light strips that it producing about 40watts of UV 390~405nm light across a 6ft tank

Is this UV light causing its blindness?

Or Is the blindness do to some strange fish disease?


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[Kremis]

Mine did the same, perfectly healthy little guy, ate like a pig until one day he just hung out in the same spot, not really moving. Would get excited when I fed but wasnt able to see any of the food, eventually he died. never did figure out the cause

 

[ZoWhat]

Bump