Water levels are all wrong

[vanalisa]

Define extreme cases?

 

[BoningKnife]

Extreme being, if for some reason you can't make it work with neons, then maybe give real consideration to your GH because then maybe, just maybe, your an extreme case. The fact remains fishkeepers have successfully kept, long term, and bred neon tetras all over not just my country but the world. So like I say, if you can't keep them, there's a problem certainly, and maybe it could be the GH.