When you attempt to breed this species, choose a healthy pair, no older than a year old, and condition them on live foods until the female is fat and the male is even more handsomely colored. In the evening, place the male in a 40 L well-planted breeding tank which is filled with 15 cm of water that has been aged about a day. It is best if the tank is placed in sunshine to encourage growth of algae. The male will begin to build a bubble nest. The female should be introduced early next morning and may help finish the nest. Dwarf Gouramis use bits of floating plants in their nest. The rest is left up to the fish.
I had a dwarf flame for about 2 years. My friendly local aquarium guy had to put him down today as his internal organs had ruptured, it looked like he'd swallowed a golf ball. He was an excellent fish and I'd highly recommend dwarfs, but with a couple of conditions. Forget about having barbs or other "fin nippy" fish in a tank with them, as they'll nip off the dwarf's antennae. The other warning is that I found my dwarf to be highly aggressive towards others of the same species. He may have just been maladjusted, but I tried a blue coral and another flame dwarf with him at different times and he killed them both within the space of a week. They are fantastic fish otherwise and I miss mine dreadfully already.
I have 2 blood red dwarf gouramis. They are very magnificent and beautiful to look at. They are peaceful with fish smaller than their size, but are very aggressive with fish bigger than them. I bought an angelfish that was about 7 cm long and 10 cm tall. After a couple of hours the gouramis and angelfish were together, the gouramis would bite at its fins and tail constantly. They taunted and abused the fish and later that week it died. I had to give away the 2 gouramis because I could not buy any fish bigger than them!
I'd like to reiterate the point about some bettas seemingly thinking that a dwarf gourami is another betta. Blissfully unaware of this, I bought a sexed pair of two dwarf gouramis for my 180 liter aquarium. The betta ("Fred") took immediate exception to both the male and female gourami, chasing them around the aquarium. I'd not seen him flare at anything before, being placid with all his other tankmates, so it was something of a shock. Fred, being my beloved, stayed put and I placed the gourami in my daughter's 52 liter tank which has another male betta in it who had arrived the same day. Apart from some passing interest, this male betta ("Milo") has largely ignored them and certainly hasn't harrassed them. Strange! I guess Fred (who is definitely "king" of the 180 liter aquarium) may be more strongly territorial, whereas Milo hadn't yet had time to establish his territory.
When I set up my very first aquarium, I started with two male dwarf gourami. Though it was only a 40 L tank and I a bumbling beginner, they were the hardiest of the fish I bought: either that, or I angered the Danio Gods in some previous life. I successfully kept these two boys in less-than-stellar conditions for more than four years. When I had to move across the country I left them with a friend, who promptly managed to kill off all the other fish (two cory cats, a pleco, two Congo tetras) but was unsuccessful in killing the gouramis. While they always liked to chase each other around, their bickering never escalated to scales flying; in fact, they seemed to almost take turns chasing each other around! They tolerate a relatively low temperature, but they do demand a relatively good quality of water, showing off their colors better with a slightly harder pH. Last I heard, the two gourami that I gave to my friend are still going strong, which now makes them seven years old!
Some of the first fish I started with when I began my hobby were male dwarf gouramies, among other species of moderately/non aggressive gouramis. They are wonderfully coloured, very even tempered and very hearty. They have never been nippy towards their community tankmates, including some rather easy to victemize catfish, with the exception of being provoked into self defense by an arrogant male betta who was quickly removed (after they had fixed his wagon!).