Thanks for taking time to reply. I will try the other food next time.

I think I am staying on top of water changes, but maybe not enough. What seems to work one time doesn't the next.

Thanks for the food info, I will try that next time and had not considered the cherry shrimp. Will see about that ...

Sorry in advance for a long post, but I know giving information sometimes helps with answers. I have read the info here on breeding and raising corys, and searched on golden pearls...still have some questions.
I keep about 15 or so albino corys in a 29 gallon and have raised them off-and-on for ...

I understood "sand" was better so I bought flint sand, which basically came from somewhere in the Midwest US. I had been raising Corys in larger "gravel" with no problem. When I went to the sand the barbels on the Cory's were toast. The sand basically looks like kids playground sand.

I switched to ...