It could have been the virus cottonmouth (cottoneye etc.). In the future I would not suggest giving your fish vacation food for as you found out it is a big fish killer. Fish are fine without food for up to 3 weeks.
Hope this helps
Sorry about the fish :( Only true fish people care.
A school of adult tiger barbs are mean little devils and will eat just about anything that they decide that they can take on.
They grow to about 1.5-2 inches in length and are very good schoolers.
I have a 60 gallon tank that I want to stock with a predator fish. It has an 80 gallon filter.
Do you have any ideas for some smart predators? You know I really like Oscars, would one of them do well in my tank?
Or 2 Jack Dempseys?
Hi, I have a forty five gallon that has been sitting waiting to be filled (with fish), I would like a community tank, but aggressive fish are fine.
Thanks!