Something is killing all my fish.

[REEFREADYBSD]

Could use some help identifying or confirming what is killing all my fish. Only signs on fish I am noticing is extremely lethargic, open mouth, and some tail fin rips. I had a fox face go blind a couple months back, and then the rest of my fish started acting weird. I had three green chromis just drop dead one by one with no signs of anything wrong. I noticed my purple tang had some shredding on its tail, and a clown swimming more towards the top of the tank with a little bump on its tail. No white spots or anything like ich. I moved the two clowns, royal gramma, and purple tang to QT to treat with Maracyn and my tang died within about 20 mins. The clown with the growth on its tail started swimming well after a day, but then died on third day of treatment. My royal gramma and other clown were just laying on the bottom of QT barely moving so I put them back in display and figured what happens, happens. In the display all I have left is a yellow watchman and pistol shrimp pair that seem to be unaffected. The clown and gramma are doing better than in QT but still not feeding. My suspicion is flukes and I was going to treat with prazipro. Figured I would come here and grab any advice before I treat. Took a couple pics of clown, it’s in a hard corner of the tank to get a decent pic.

 

[Jekyl]

Clown looks like it may have brook. Can you please provide some more white light photos and a 30 second video?

 

[REEFREADYBSD]

Extra pic of clown he moved a little

 

[Jekyl]

Extra pic of clown he moved a little

Very beaten up also. Definitely aggression going on in the tank.

 

[REEFREADYBSD]

Clown looks like it may have brook. Can you please provide some more white light photos and a 30 second video?

 

[REEFREADYBSD]

Very beaten up also. Definitely aggression going on in the tank.

Here are the videos tank is a mess right now bc of moving rocks to catch tang.

 

[vetteguy53081]

Could use some help identifying or confirming what is killing all my fish. Only signs on fish I am noticing is extremely lethargic, open mouth, and some tail fin rips. I had a fox face go blind a couple months back, and then the rest of my fish started acting weird. I had three green chromis just drop dead one by one with no signs of anything wrong. I noticed my purple tang had some shredding on its tail, and a clown swimming more towards the top of the tank with a little bump on its tail. No white spots or anything like ich. I moved the two clowns, royal gramma, and purple tang to QT to treat with Maracyn and my tang died within about 20 mins. The clown with the growth on its tail started swimming well after a day, but then died on third day of treatment. My royal gramma and other clown were just laying on the bottom of QT barely moving so I put them back in display and figured what happens, happens. In the display all I have left is a yellow watchman and pistol shrimp pair that seem to be unaffected. The clown and gramma are doing better than in QT but still not feeding. My suspicion is flukes and I was going to treat with prazipro. Figured I would come here and grab any advice before I treat. Took a couple pics of clown, it’s in a hard corner of the tank to get a decent pic.

Not sure about brook and will need better pics but see tail is almost completely gone and likely from aggression and with mouth open in pic, it appears to be breathing heavy.
What other occupants in the tank (looks like something another clown may have done)?
Please provide you tube video so breathing rate and overall fish can be seen more clearly

 

[REEFREADYBSD]

Not sure about brook and will need better pics but see tail is almost completely gone and likely from aggression and with mouth open in pic, it appears to be breathing heavy.
What other occupants in the tank (looks like something another clown may have done)?
Please provide you tube video so breathing rate and overall fish can be seen more clearly

Other tank mates included another black Ocellaris clown, purple tang, royal gramma, yellow watchman, and pistol shrimp. I’ll try posting the videos to you tube and making a link.

 

[REEFREADYBSD]

 

[REEFREADYBSD]

Hope that worked first time posting to You tube

 

[Jekyl]

I retract my earlier statement as it was a smudge on the glass that I thought was excess mucus.

 

[vetteguy53081]

Hope that worked first time posting to You tube

Clown is my primary suspect

 

[Jay Hemdal]

There could very well be multiple issues going on, but I agree that the clown has been attacked by another fish.

 

[REEFREADYBSD]

I never noticed any aggression between the clowns, but not a problem anymore because the other clown didn’t make it through the Maracyn treatment.

 

[REEFREADYBSD]

I forgot to mention I originally thought this was fin rot bc the other clown had the strange growth thing and a messed up tail, the Tang had a couple shredded fins, and that clown in the pics had the tail like it does.

 

[Jay Hemdal]

I forgot to mention I originally thought this was fin rot bc the other clown had the strange growth thing and a messed up tail, the Tang had a couple shredded fins, and that clown in the pics had the tail like it does.

Fin rot is just a bacterial infection of a fish’s fin. It begins with some injury to the tissue that allows bacteria to invade the tissue. In most cases, the injury is caused by another fish attacking it. It can also happen if a fish rubs its tail on something, like in a shipping bag.

 

[REEFREADYBSD]

Wanted to post another video bc this morning the clown was swimming around more but is significantly lighter than normal. Is this velvet? I have no idea what has infected this tank.

 

[Jay Hemdal]

Wanted to post another video bc this morning the clown was swimming around more but is significantly lighter than normal. Is this velvet? I have no idea what has infected this tank.

Looks like some aggression combined with a secondary bacterial infection.

Velvet will cause rapid breathing, not eating plus hovering in the water flow.

 

[REEFREADYBSD]

Looks like some aggression combined with a secondary bacterial infection.

Velvet will cause rapid breathing, not eating plus hovering in the water flow.

Wouldn’t the 5 day treatment of Maracyn have cleared up the velvet? I was going to treat the display with prazipro thinking it was something else, should I not do that? I’m stumped on this one.

 

[Jay Hemdal]

Wouldn’t the 5 day treatment of Maracyn have cleared up the velvet? I was going to treat the display with prazipro thinking it was something else, should I not do that? I’m stumped on this one.

Maracyn is an antibiotic (Erythromycin) that seems to have the most effect against gram positive bacteria. Velvet (Amyloodinium) is a flagellate protozoan that is not at all inhibited by Maracyn. If the issue is velvet, the best treatment is coppersafe (but it will kill all invertebrates, so must be done in a fish-only treatment tank).