if thats the case why is his other ray ok it dont make sense surely the meds would of killed both rays?
i think there must of been a problem with the ray before the meds were added
not 100% true each rays are affected diffrent i find that females seam to be affected more with things like shipping and getting them settled into a new tank
one ray may go belly up the other may have stayed carmer but their is still the chance of inturnal damage
when i 1st started with rays and wasnt sure what meds to use and their was no internet to ask suprplyers on meds if they were ray safe i added some thing to a motoro leo tank the motoro went belly up but the leo was fine i put the tank on a 24hr overflow systerm to tank all the tank water and they were both fine
each ray is diffrent
my first thought was the meds were to blame.just goes to show make one little mistake and you have a dead ray 


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