No apparent reason that I could see. All other fish are fine. Water parameters good. I make a point of studying them when they have been fed. No spots, fungus, nipped fins, fin fungus, nothing on ANY of the fish, bright eyed and bushy tailed (finned). So, friday night, as per normal, studying them, no probs. Saturday morning, my wee golden barb. Dead. Lying at bottom of tank. WTH ??? Got me beat, all other fish, still good. A question for you all. can a fish choke to death ?? A shrimp pellet ?? Could he of been attacked ??? He was bigger that the other fish except a clown loach and a male bristlenose. The three of them were same size approximately. The other fish are penguin Tetras (4) and a female Plattie (they were friends) and 5 tiger barbs. His mouth was wide open when I found him, hence the question of choking. No marks that I could see on his body. :dno: