Datreeferman
Aquarium Advice Activist
Hi, I bought 5 neon tetras at petco and I had to euthanize one because it had neon tetra disease, now I have 4 left. Is it ok if I have only 4 left? Will they die if there's less than 5 in a school or am I fine with just 4? If they do stress a and die how long will it take before that happens? Thanks.