the_elvish_misfit
Aquarium Advice Activist
I just stocked 5 Neon Tetras in my 10g today and for 4 hours they were fine and getting on well with my other fish (2 guppies, 2 black mollies, a beta, and a pleco). All the water conditions are perfect as well. But 4 hours after getting them one of them started doing that straight up swimming (which happens, bad fish oh well) so I put him in a quarantine tank where he almost instantly died. So I went back to check the status of my other fish to find that another of the neons swam into my foxglove plant and died. The other 3 Neons are still schooling and swimming fine and my other fish are acting normally also. Could these two fish just be bad from the store? I thought if I got them from Petco they would be healthier than a family pet store. Is suddenly dieing normal in Neons? They were both acting fine literally minutes before they died. Should I remove all the Neons?