Thank you everyone for your posts. Just cleaned out tank and sump. Gonna let sand sit for a week then time to get going again. I'm thinking earthworms because after cleaning out tank and sump was clean of all debris and water parameters still good. Gonna send rays out to see what really happened. Really looks like a bacterial infection after looking at my departed rays but i will find out. Going to get tank cleaned and cycled then stocking with rays and maybe peacock bass also. Hit me up if you have pups or bass you are willing to part with. Thanks