3 dead basslets

MedicalRower

New member
Hello.

I had 3 basslets (1 royal gramma and 2 purple) in my quarantine tank along with a 6 line wrasse and a helfrichi firefish for the past 2+ weeks. Over the course of the last 12 hours, the 3 basslets died without warning. None of them appeared ill in any way. They had been eating well in the days leading up to their death and were actively swimming with no apparent breathing problems.

The water parameters in the tank are as follows:
Ammonia: 0
Nitrate: 0
Nitrite: 0
SG: 1.024

Anyone have any ideas? Should I be concerned about the other two fish in the tank? Water change is in progress as I type this. Should I proactively be treating the tank with something even though it would be a blind treatment?

Jessica
 
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