Lost my yellow tang last night.

[MrWellington]

Not sure what happened. He was eating well, swimming fine, and grazing along the rocks as he normally did yesterday. This AM, flat on the tank floor.

Checked all the parameters - everything in the normal range, with the exception of Phosphates (0.6). The only change was that I added Phosguard yesterday to try to slowly bring phosphates down. I can't imagine that being the culprit.

Doing a (50%) water change now, just because I'm unsure of the unknown. He was one of my favorites and an ex$pensive loss.

 

[vetteguy53081]

Not sure what happened. He was eating well, swimming fine, and grazing along the rocks as he normally did yesterday. This AM, flat on the tank floor.

Checked all the parameters - everything in the normal range, with the exception of Phosphates (0.6). The only change was that I added Phosguard yesterday to try to slowly bring phosphates down. I can't imagine that being the culprit.

Doing a (50%) water change now, just because I'm unsure of the unknown. He was one of my favorites and an ex$pensive loss.

Sorry to hear. Without pics, often hard to see any suspect causes.
Was mouth open when you found it?
Any redness on mouth or skin?
Phos level would not do it but I do question amount of Phosguard used and the impact it may have had on oxygen while it should be low

 

[exnisstech]

Was it one of the small biota ones? Just curious. Any signs of aggression?

 

[Gumbies R Us]

Not sure what happened. He was eating well, swimming fine, and grazing along the rocks as he normally did yesterday. This AM, flat on the tank floor.

Checked all the parameters - everything in the normal range, with the exception of Phosphates (0.6). The only change was that I added Phosguard yesterday to try to slowly bring phosphates down. I can't imagine that being the culprit.

Doing a (50%) water change now, just because I'm unsure of the unknown. He was one of my favorites and an ex$pensive loss.

So sorry to hear about your loss!

 

[MrWellington]

Sorry to hear. Without pics, often hard to see any suspect causes.
Was mouth open when you found it?
Any redness on mouth or skin?
Phos level would not do it but I do question amount of Phosguard used and the impact it may have had on oxygen while it should be low

I did examine him under a magnifying glass after removal. No obvious bites/flukes/parasites, etc. I'm not sure about his mouth position. What would that indicate? I used 2/3' cup, which would be a little less than directed for a 120.

Regarding O2 levels, my DF Puffer was spending a lot of time at the top of the tank this AM, so I added an air stone post-water change -- which he seems to love. It's like he's taking an upside-down shower. Does Phosguard significantly reduce O2 levels to the point of mortality?? I understand the skimmer does the job of gas exchange, and it was running fine (it uses an outside filtered air stream).

 

[MrWellington]

Was it one of the small biota ones? Just curious. Any signs of aggression?

It was in fact from Biota. He arrived to me about a month ago. No aggression ever. I was a little concerned that he would swim VERY close to the puffer, like "no fear", but neither seemed very concerned about their proximity.

 

[exnisstech]

I

It was in fact from Biota. No aggression ever. I was a little concerned that he would swim VERY close to the puffer, like "no fear", but neither seemed very concerned about their proximity.

I just wondered as the ones I see in the lfs have been very small and thin but I haven't read of people loosing them.

 

[vetteguy53081]

I did examine him under a magnifying glass after removal. No obvious bites/flukes/parasites, etc. I'm not sure about his mouth position. What would that indicate? I used 2/3' cup, which would be a little less than directed for a 120.

Regarding O2 levels, my DF Puffer was spending a lot of time at the top of the tank this AM, so I added an air stone post-water change -- which he seems to love. It's like he's taking an upside-down shower. Does Phosguard significantly reduce O2 levels to the point of mortality?? I understand the skimmer does the job of gas exchange, and it was running fine (it uses an outside filtered air stream).

Mouth open would indicate low oxygen at some point and redness would be possible impact damage

 

[MnFish1]

It was in fact from Biota. He arrived to me about a month ago. No aggression ever. I was a little concerned that he would swim VERY close to the puffer, like "no fear", but neither seemed very concerned about their proximity.

how big was the fish? IMHO _ little tangs can be more difficult than larger ones - and sorry about the death