No I've also added 3 black Neons. They are in the breeding tank coz the female is pregnant and I've seen them spawning. You can follow the thread here. Next time I go to the pet shop I'll get the next 6 Black neons, and after that the 6 gouramis.
Btw, I've also added 13 Red Cherry Shrimp into this tank(because it didn't work out with my betta-he wanted to bite their heads off) .
So far so good, and since the tetras are babies, their mouths aren't big enough to eat the shrimp.
Activity in the aquarium
Shrimp are cleaning diatoms and doing a good job.
This is (I think) a low fire red grade or a high sakura grade. The photobombers think they're getting food.