Can anyone help with diagnosing? His body seems to be rotting

The fish has been like this the entire morning while a few others

The fish was perfectly fine and as I was moving some plants and

This is the 7th fish I've lost in this manner. Dark spot on their

My fish has neon tetra disease

How can I help my fish?

Platy fish have gotten disease and I’m struggling on what to

What’s going on? Healthy young fish suddenly passing..

Any Ideas why this fish freaked out and died?

What is going on with this fish? Please help

My fish is moldy

New fish are struggling