Channa tankmates

[Madou]

I have kept channas with arowana, gars, datnoids and birchirs without any problems. Trick is to have space and hiding places for them.

"Channas" is quite a loose term. If by "channas" you mean Pleuros or Maruloides, I would agree that sometimes it can work. Any other channa, it simply doesn't work long term 9 out of 10 times.