Trigger passed suddenly

[Reefer1978]

Not an emergency, but I wanted to ask what might have happened as more of a continued learning exercise. I've had a red-tail trigger for almost 2 years, one of the favorite fish for the family, always hungry, always present in front of the tank running left to right looking for food. Suddenly yesterday morning it didn't come out for morning feeding, I saw it triggered behind one of the back rocks. It was alive, no visible signs of anything wrong, was looking right at me, just didn't come out to eat. By the early afternoon it was dead, with very white discoloration in the stomach area.

Parameters that I am actively tracking, please please let me know if anything additional is worthwhile checking:
Ph: 7.8-7.9, does swing between days with open windows, and days with closed.
Alk: around 7
Temp: 79
P04: 0.05ppm via Hannah checker
NO3: 3.5ppm via Hannah checker

The only thing I could think of causing death is an overdose of Coral Snow over the weekend, but it was shaken up pretty well and went right into the high flow area of the tank. Other than that, I see no other visible signs as to what could cause death. Picture is coming in the next reply from the phone.

 

[Reefer1978]

 

[MnFish1]

How much coral snow did you overdose? In any case - it's nearly impossible to tell what could be going on the picture of a dead fish doesn't help much. If none all of your other fish are ok - it makes disease less likely.

Concerning the picture, the white area could be a suggestion of some internal issue - like a blockage/etc - which was infected. I can't really relate it to coral snow. I would carefully watch your other fish for issues.

Coral snow also contains some unknown ingredients - so it's possible there was some relation. Sorry for your fish.

 

[Reefer1978]

How much coral snow did you overdose? In any case - it's nearly impossible to tell what could be going on the picture of a dead fish doesn't help much. If none of your other fish are ok - it makes disease less likely.

Concerning the picture, the white area could be a suggestion of some internal issue - like a blockage/etc - which was infected. I can't really relate it to coral snow. I would carefully watch your other fish for issues.

Coral snow also contains some unknown ingredients - so it's possible there was some relation. Sorry for your fish.

Thank you @MnFish1, I figured it will be tough. All other fish are ok, no issues or signs of any kind of anything being wrong. Coral Snow overdoze was 4x (dumb mistake).

 

[vetteguy53081]

Coral snow in the past has affected certain fish and not saying its the cause but looks to be an infection in the intestinal area of the trigger which looks great other than perished and can be from absorption or prior infection . Coral snow is a flocculant which binds particles and comprises of a calcium and magnesium carbonate mix and can have adverse effects if not properly dosed as it becomes a bio-facilitator
How was fish breathing when hiding?

 

[Reefer1978]

Coral snow in the past has affected certain fish and not saying its the cause but looks to be an infection in the intestional area of the trigger which looks great other than perished. Coral snow is a flocculant which binds particles and comprises of a calcium and magnesium carbonate mix and can have adverse effects if not properly dosed as it becomes a bio-facilitator

Thank you @vetteguy53081, I realized my mistake right away and tried to filter out as quickly as I could. but a mistake is a mistake after all.

 

[vetteguy53081]

Thank you @vetteguy53081, I realized my mistake right away and tried to filter out as quickly as I could. but a mistake is a mistake after all.

We all encounter such error at one point or another and learn from them. Was a gorgeous fish

 

[Reefer1978]

We all encounter such error at one point or another and learn from them. Was a gorgeous fish

Thank you, indeed it was, not without it's own challenges.