Some guys call this as the blue bleheri, which is wrong. It a a different species and not a color variant. But both these fish are found exclusively in Assam state of india albeit in different districts and in dintinct habitats. But both are closely related.
Gachuas may look simila, they have pelvic fins, which are absent in case of bleheri ans sp.assam / lal cheng.
You may feed these guys tiny fish, insects and worms, but keep them free of bird and animal meat, if you love them.
Here are some pics for comparison.
Channa bleheri
Channa sp.assam / sp.lal cheng
Channa gachua
Comparison between their caudal fins
Channa bleheri
Channa sp.assam / sp.lal cheng
Channa gachua
Pelvic fis of channa gachua
Gachuas may look simila, they have pelvic fins, which are absent in case of bleheri ans sp.assam / lal cheng.
You may feed these guys tiny fish, insects and worms, but keep them free of bird and animal meat, if you love them.
Here are some pics for comparison.
Channa bleheri
Channa sp.assam / sp.lal cheng
Channa gachua
Comparison between their caudal fins
Channa bleheri
Channa sp.assam / sp.lal cheng
Channa gachua
Pelvic fis of channa gachua