I have 1 male and 2 female dwarf gourami's in my tank and they seem to do pretty good when it comes to getting a fair share of food - that said they dont have too much competition for food at the upper layers.
However I regularly add a chunk of cucumber to the tank (held in place on a clip) primarily for my 3 otocinclus and amano shrimp- but I have also found that my male gourami LOVES it ..... he eats it everytime I put it in the tank, and it saves him getting interested in my plants.
I usually remove the very soft centre of the cucumber to prevent it getting too soft and breaking up in the water, then I just blanche it in hot water for about 20 secs and then into the tank ..... I dont leave it in for more than 24 hours otherwise it gets a little too soft.