New Panda Cory, not looking so good

I have all but given up on corys. Every time I get them they either die within a few days or seem to do well for almost a few months but then just suddenly up and die for no reason.

And as you know, I am not a newbie, nor am I someone who doesn't seriously know what he is doing in general with fishkeeping. I have successfully kept almost every species I have ever set out to keep except for the corys - which are ironically supposed to be some of the hardiest fish available. I provide them with near perfect water conditions, properly gradual acclimation, consistent water changes and substrate cleanings, and good quality bottom feeder pellets. They just refuse to live for me. Ever.

In fact just yesterday I bought three adolfis and today they are all dead. Yet the rams and angels I bought are colorful,, active and seem to have taken to their new home quite well.

I'm going to try one more group next week. Probably plain old greens; and if they all die, I'm finished with corys forever. There's my story.
 
I have all but given up on corys. Every time I get them they either die within a few days or seem to do well for almost a few months but then just suddenly up and die for no reason.
That reminds me of my julii cories. Let's see how long the two remaining ones will make it, although I hardly ever see them anyway.

Hopefully, my four remaining pandas will live somewhat longer.
 
Hows the panda doing?
The remaining one has 3 new friends and they seem to be doing really well. At first they paired off and stayed together then they all found each other again and stay together almost all day long. They can be so funny because there is a little flower pot for them to hide in but they play leap frog and it's funny to see them one right after the other jumping over the pot.

Thanks for asking!

I hope they all live!! I wonder why they are hard to keep, anyone know?
 
The remaining one has 3 new friends and they seem to be doing really well. At first they paired off and stayed together then they all found each other again and stay together almost all day long. They can be so funny because there is a little flower pot for them to hide in but they play leap frog and it's funny to see them one right after the other jumping over the pot.

Thanks for asking!

I hope they all live!! I wonder why they are hard to keep, anyone know?

Pandas, very in my experiance unfortunatly. very touchy to water changes and things.
 
I've heard of a lot of cories dying within the first day or so. It's not hard to injure them in netting. The stores should really catch them in a cup.
 
Donno, I always net my corys, but I never take them out of the water in the net, more scoop them into a big jug that I use. So I guess its a bit different. What they need is a big cup on a stick with holes in it but the bottom inch solid, so they can catch them and take them out but still have them in water n stuff.
 
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