Looking for some advice here. Not sure what’s going on with my linespot flasher wrasse. I’ve had this fish for about two years now. Yesterday I noticed he had a big stringy poop hanging out of him which seemed kind of strange. Later throughout the day I noticed he was hiding and normally he’s the king of the tank. I woke up this morning and found him completely mangled and pretty much dead. I placed him in a quarantine tank to observe. Fish is currently breathing but in really rough shape. I haven’t added any fish to the tank in probably 3 months, and quarantine all fish before they go into my tank. I didn’t notice any other fish picking on him prior to this. I am thinking he may have got caught in a powerhead, but thinking he may have had an underlying issue that caused him to be weaker than normal. Any ideas?