New planted community setup

[MultipleTankSyndrome]

Good luck with that, which sounds awesome!!!

Glad you find it awesome, and thank you for the good wishes! You can read more about it from the linked thread in my signature (3rd paragraph) if you are interested.

As for this thread, Deadeye is probably correct. When my school of neons was wiped out from it, they often died during times when I was not home. That, rather unfortunately, allowed the surviving neons to eat their dead schoolmate and catch the disease.
Although that's not to say it can't be transferred even if the affected fish is separated and euthanized, the affected fish being eaten definitely spreads the disease.

 

[FJB]

I did not know about the main transmission via eating the dead ones. Good to know. However, I am now more worried than before, but I guess it is what it is!

 

[Deadeye]

11.12. Neon Disease

What is neon tetra disease?

aquariumscience.org