What a treat to get a few of these guys! Always very happy with your fish and plants. Thank you for what you do!
The fish pictured here are trichogaster labiosa, the thick lipped gourami, not t. chuna as advertised. They get larger, are more aggressive on average especially once grown, and can be somewhat easily distinguished by the transparent tail fin and the more prominent shape of the face (hence the common name thick lipped gourami). They are fine fish in their own right, but a totally different niche than what people normally buy honey gourami's for as peaceful and very small gourami's suited for community tanks. They will also eventually kill true honey gourami's through constant harassment once grown so should not be housed together. The seller should correct the advertised information rather than take advantage of the more well recognized name of honey gourami to sell a totally different fish.
It's been about 4 days now and their color is darkening already