I'm planning on switching to black neon tetras ONLY and I want 12+, 1 apple/mystery snail, I already have a pleco.. But do black neons stick together as a group 90% of the time? At my LFS, I see the neons school but not the black neons or any other fish.. Or maybe 6 black neon and 6 neon.. But every time I add a neon tetra, it dies(or all of them dies)! And I heard that neon tetras have a high death chance when introduced, but this is ridiculous!
Summary:
1)Do black neons school as much as neons?
2)Should I get 6+black neons, 6+neons?
3) at #2, will they school with each other?
4)Good idea?
5)Is there something wrong with my tank that all the neons die, but not the black neon tetras?
Extra:
6)IF my driftwood WAS rotting, would it still bother the fish (after I put in), even after I cut off the part? I mean, wouldn't the bad stuff mix with the water? I don't want to cycle again!
7)Should I add plants, even though my tank is anywhere but near a window? As for CO2, should I get those freshwater plant supplement things?
8)Will adding a non-photosynthetic light still produce algae or feed the plants?
Why I want to have only black neons or black AND neons:
I'm so sick of my tetras dying off one by one because of the others nipping and bothering my other fish. Besides, they look cool as a huge group schooling, rather than just little groups not schooling but killing each other
:
Ty for reading all this stuff and if you can, PLEASE answer(or at least some of them) ASAP!
Summary:
1)Do black neons school as much as neons?
2)Should I get 6+black neons, 6+neons?
3) at #2, will they school with each other?
4)Good idea?
5)Is there something wrong with my tank that all the neons die, but not the black neon tetras?
Extra:
6)IF my driftwood WAS rotting, would it still bother the fish (after I put in), even after I cut off the part? I mean, wouldn't the bad stuff mix with the water? I don't want to cycle again!
7)Should I add plants, even though my tank is anywhere but near a window? As for CO2, should I get those freshwater plant supplement things?
8)Will adding a non-photosynthetic light still produce algae or feed the plants?
Why I want to have only black neons or black AND neons:
I'm so sick of my tetras dying off one by one because of the others nipping and bothering my other fish. Besides, they look cool as a huge group schooling, rather than just little groups not schooling but killing each other

Ty for reading all this stuff and if you can, PLEASE answer(or at least some of them) ASAP!