At first, all these fish seemed happy and thriving, but about 3 months in- they developed what looks like wasting disease and all died within 3 weeks of each other. Treated for parasites, bacteria, and tested for water quality issues, but none of that helped. After some research, looks like poor genetics could be a cause of wasting disease. All 6 of these fish have died while the medaka from other breeders are doing well. Not sure what happened here but perhaps there is not enough genetic diversity in their stock.
cooliest little nano fish going! They look like little trout.