Hi Sterbai22,

I agree with Shane on this one. Sometimes we can point to a singular condition or event that leads to mortality, but in many cases it's never clear. Clean, well aerated water is often the best remedy.

Good luck going forward,
Eric


Thanks. Yes I know sometimes it is just better ...

Thanks Shane. I will keep this in mind but I hope it doesn’t happen again

Thanks for the answer. Yes it seems so strange but I had to ask since I came across the information on cory-toxic while googling for possible causes.

I have had theese corys for 1,5 yrs and I’m at least the third owner so I guess they were old but still wierd that all die at once. Maybe something ...

Should say 8, not a sunglass smiley…

Two weeks ago I lost three corys and an angelfish all within 24hrs.
It started sunday night when I found a dead cory. Sad but well, they are all old, it can happen, I thought.
On monday lunch my husband found another one dead. I came home from work and found the third one also diseased. Now this ...