Norman's lampeye

[Benandjon]

Hey

Ok so about a month ago, I bought a small shoal of 4 Normans Lampeye. To cut a long story short, this week they have been dying one by one, almost on a daily basis. There is only 1 remaining now, but I don't hold much hope for him?!

None of them showed any symptoms, aside from, well, dying?! None of the other fish (community tank) are showing any I'll health at all! The only symptom that was shown was by one of them... He hung around near the surface before he died the next morning?

Anyone have any clue at all as to what is going on?

Thanks!

 

[Mumma.of.two]

What's your water parameters?
How did you acclimate them?
It could have just been weak/bad stock.