Blue Moon Galaxy are (IME) most definitely not a Channa to start with.
As Brucki said they need REAL Sub-Tropical water (at the colder end) and they really do need this.
They can be very aggressive, and are not that easy to breed.
Unless you have a decent water cooler system and can keep the water very low, I would avoid these.
Can be pricey especially for trial and error!
Okay probably give those a miss then as i dont have a water cooler system, i want to get a group of channa to form a pair what ones would you suggest, colourful and around the 20 - 40cm mark in size