Hm, did he look okay when you bought him? Also, how did you acclimate this fish? exactly how quickly did he die?
Was it an actual badis like, ruber, buxar or burmanicus? Or was it one of the dario species, scarlet, hysginon, or sp jaintia hills?
The larger badis can be trained to take quality prepared foods if time and care is taken, but the dario species need very small live or frozen foods.
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What did you feed the fish?
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Frozen Baby brine shrimp, frozen daphnia, crushed flakes
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