All my fish are dead

[nano_ryan]

Hello everyone. Every single fish in my 150 is dead right now and don’t know why. At first I thought it was velvet, but it’s much much worse. Every fish’s color started to degrade and their scales started to burn off. Over the course of a week, all 20-30 of my fish are dead. There has been ich, but the fish have had it for around 6 months with no problem. My lfs sold us a reef octopus bio pellet reactor for $100(normally sold for 350), and thought that was a steal so bought it. I ordered some brs bio pellets that day. Once I set up the bio pellet reactor, and poured the bio pellets in, I tried turning it on. The reactor’s pump was broken and had been used for i’d say 3-4 years prior. The reactor, with the bio pellets still in its chamber, had sat with no water movement for 3 weeks until I was able to get a new pump. (There is ventilation for water to pass through even thought it’s turned off). I think that the bio pellets sitting with zero water movement, broke down to lease toxic gas into the tank. Ever since I put this bio pellet reactor into my tank, problems have grown. Possibly hydrogen peroxide poisoning has intoxicated my tank. Please if any one can tell me if the bio pellets has done this, or something else.

Here is my sail fin and coral angel one day prior to death:

 

[xiholdtruex]

First remove the biopellet reactor just incase, Add some fresh carbon to the tank preferably in a reactor. Dose Seachem prime just incase. Definetly looks like velvet but mixed with something else. hope someone else can chime in bud

 

[Paulie069]

Hello everyone. Every single fish in my 150 is dead right now and don’t know why. At first I thought it was velvet, but it’s much much worse. Every fish’s color started to degrade and their scales started to burn off. Over the course of a week, all 20-30 of my fish are dead. There has been ich, but the fish have had it for around 6 months with no problem. My lfs sold us a reef octopus bio pellet reactor for $100(normally sold for 350), and thought that was a steal so bought it. I ordered some brs bio pellets that day. Once I set up the bio pellet reactor, and poured the bio pellets in, I tried turning it on. The reactor’s pump was broken and had been used for i’d say 3-4 years prior. The reactor, with the bio pellets still in its chamber, had sat with no water movement for 3 weeks until I was able to get a new pump. (There is ventilation for water to pass through even thought it’s turned off). I think that the bio pellets sitting with zero water movement, broke down to lease toxic gas into the tank. Ever since I put this bio pellet reactor into my tank, problems have grown. Possibly hydrogen peroxide poisoning has intoxicated my tank. Please if any one can tell me if the bio pellets has done this, or something else.

Here is my sail fin and coral angel one day prior to death:

So sorry for your loss,, hope you push on and keep reefing

 

[Hallowhead]

Did you test parameters ? I would suspect maybe ammonia spike ?

 

[JGT]

Wow, yes those are some really bad cases of what appears to be velvet along with HLLE for the tangs. From the time they started looking bad to death, what was the timeframe?

 

[nano_ryan]

Wow, yes those are some really bad cases of what appears to be velvet along with HLLE for the tangs. From the time they started looking bad to death, what was the timeframe?

One week after putting the bio pellets reactor was placed in the sump, is when fish started dying. All my fire fish were first, then cardinals, then so on. All my bigger fish that were left alive during week 2, started losing color and a a lot of my tangs(2 powder blues, 2 yellow tangs) died. Every day after that all the surviving fish died one by one. Is it velvet or bio pellet reactor? Or both?

 

[nano_ryan]

Did you test parameters ? I would suspect maybe ammonia spike ?

I checked and no ammonia. It’s been running for almost a year.

 

[Hugh Mann]

I didn't read anything about new or recent additions of livestock, and if that is the case, I don't see how it could be velvet. But, just to rule it out, we're any fish exhibiting the symptoms, light sensitivity, swimming into flow, rapid breathing? If not, then no velvet.

Unfortunately that is the extent of my usefulness here. I do hope that you can figure it out.

 

[nano_ryan]

I didn't read anything about new or recent additions of livestock, and if that is the case, I don't see how it could be velvet. But, just to rule it out, we're any fish exhibiting the symptoms, light sensitivity, swimming into flow, rapid breathing? If not, then no velvet.

Unfortunately that is the extent of my usefulness here. I do hope that you can figure it out.

The newest addition to the tank was a big french angel. He came straight from the facility that all of our fish come from. He didn’t have anything on his skin. He had labored breathing and died 3 days later. None of my fish had labored breathing before they died except for that french angel and my emperor angel. Ich has been in my tank for around 6 months but the fish pulled through without a problem.

 

[Hugh Mann]

3 days fits with the lethality of Velvet, if you didn't quarantine, but the lack of other symptoms is puzzling if that's the case.
Definitely wouldn't be ich, it's not that deadly, especially if you've been managing it for months.

 

[Jay Hemdal Verified Community Expert]

Hello everyone. Every single fish in my 150 is dead right now and don’t know why. At first I thought it was velvet, but it’s much much worse. Every fish’s color started to degrade and their scales started to burn off. Over the course of a week, all 20-30 of my fish are dead. There has been ich, but the fish have had it for around 6 months with no problem. My lfs sold us a reef octopus bio pellet reactor for $100(normally sold for 350), and thought that was a steal so bought it. I ordered some brs bio pellets that day. Once I set up the bio pellet reactor, and poured the bio pellets in, I tried turning it on. The reactor’s pump was broken and had been used for i’d say 3-4 years prior. The reactor, with the bio pellets still in its chamber, had sat with no water movement for 3 weeks until I was able to get a new pump. (There is ventilation for water to pass through even thought it’s turned off). I think that the bio pellets sitting with zero water movement, broke down to lease toxic gas into the tank. Ever since I put this bio pellet reactor into my tank, problems have grown. Possibly hydrogen peroxide poisoning has intoxicated my tank. Please if any one can tell me if the bio pellets has done this, or something else.

Here is my sail fin and coral angel one day prior to death:

I’m having trouble getting a sense as to your tank- 30 fish in a 150 seems like a lot. Do you have invertebrates also? If they are all fine, then the issue is almost assuredly a fish disease problem. You mention hydrogen peroxide poisoning, how are you adding that, and at what dose? Fish are the last organisms to be harmed by peroxide- algae and bacteria would die first, then inverts, then the fish.
If you showed me he pictures of your fish, out of context, I would say Neobenedenia flukes.
I can’t speak to the bio pellet issue....
Jay

 

[Rissa]

Hello everyone. Every single fish in my 150 is dead right now and don’t know why. At first I thought it was velvet, but it’s much much worse. Every fish’s color started to degrade and their scales started to burn off. Over the course of a week, all 20-30 of my fish are dead. There has been ich, but the fish have had it for around 6 months with no problem. My lfs sold us a reef octopus bio pellet reactor for $100(normally sold for 350), and thought that was a steal so bought it. I ordered some brs bio pellets that day. Once I set up the bio pellet reactor, and poured the bio pellets in, I tried turning it on. The reactor’s pump was broken and had been used for i’d say 3-4 years prior. The reactor, with the bio pellets still in its chamber, had sat with no water movement for 3 weeks until I was able to get a new pump. (There is ventilation for water to pass through even thought it’s turned off). I think that the bio pellets sitting with zero water movement, broke down to lease toxic gas into the tank. Ever since I put this bio pellet reactor into my tank, problems have grown. Possibly hydrogen peroxide poisoning has intoxicated my tank. Please if any one can tell me if the bio pellets has done this, or something else.

Here is my sail fin and coral angel one day prior to death:

I’m sorry that this happened to you!

 

[unchin]

Sorry about your loss. The fact that there were biopellets involved makes me feel like it might have been some bacterial infection, especially given the fin rot as well.