Figuring out what killed six line wrasse

[trmiv]

I bought a six line wrasse and a bi-color blenny from the same spot on Sunday and put them in my cycled quarantine tank. The six line ate almost immediately and was fine for a few days but yesterday rapidly went downhill and was dead today. I noticed what appeared to be a small sore near the tail and the fins were very frayed but this was guy was tiny it was really difficult to see anything else. I did notice some solid white poop coming out so probably had something internal.

I attached some pics but not sure how helpful they are, I couldn’t get my phone to focus well.

Anyway I’m trying to figure out what/if I should treat the goby with to ensure he doesn’t meet the same fate. He’s fine at the moment and eats just fine. Should I start prazi and some type of medicated food to be safe? I have prazi, metroplex, kanaplex and furan-2 on hand. I also have some focus. I can get General cure quickly as well.

IGNORE THIS IMAGE, I can't seem to remove it, this was a coral hitchiker from years ago.

 

[Big G]

Wrasses can be fluke magnets. A freshwater dip to confirm or eliminate flukes from consideration is a good idea as they can contribute to secondary bacterial infections (frayed fins, etc.).

 

[trmiv]

I just dipped the body and I do see a few what appears to be flukes in the water.

 

[Big G]

Keep in mind that the flukes that probably are within the gills usually do not come off during a FW dip. It's mostly the body flukes that you see. The gill flukes do more of the damage to the fish's immune system.

 

[trmiv]

So probably a good idea to start Prazi on the goby now in that case.. I usually wait about a week, but since i know they are there, may as well start now.

 

[trmiv]

BTW I have no idea how that third image got up there, thats not a fluke. It was an old pic of a hitchiker from a coral. Can't seem to remove it so just ignore it.

 

[Mjrenz]

Just a word to the wise about using prazi, it greatly reduces the available oxygen in the water and if you are also running copper it can create a bacterial bloom that will further reduce o2. Keep a close eye on breathing and aerate like crazy. Prazi does its work within 24 hours so it's not necessary to keep it in the water past then until you do the second dose in 5 to 7 days