With their generally peaceable natures, unique “feelers’, and fascinating breeding behaviors, several of these Asian natives have long been aquarium, trade staples. The colorful Dwarf Gourami and similar species do well in small aquariums, while the stately Giant Gourami may top 2 feet in length and li age 20+ years in age. Several mouth-brooders and bubble nest builders are great favorites of fish-breeders.