I am sorry to hear your loss. :cry: What is their tank mates? I don't see anything particulary but about your water parameter. Although I do wonder about the hardness of water. GH And tank stock level. So what fish and how many of what in the tank beside the Corys? Ok...in my 54 gallon tank I have ...

Y died....I'm real devastated....I need help! Please help me!

CL1