Pearl gourami pair of pearl gouramis, although anything above that volume is greatly recommended, since these fish show signs of stress, abnormal aggression, and illness when feeling confined. Preferred tank temperatures are 22–28°C (72–82F). Tanks with surfaces exposed to fresh air are recommended so that the pearl gourami's labyrinth organ can function correctly. As with any tropical aquarium, adequate filtration, lighting, substrate and decorations, plants, and proper care are required. The pearl gourami is a territorial fish and should only be suited in a community tank with fish of similar size to it. However, this fish may be somewhat timid or shy,
Creature type (Dungeons & Dragons) a change to an animal creature that increases its Intelligence or grants it additional abilities, the designer is encouraged to also change the creature's type, usually from animal to magical beast. When real world animals are rendered as vermin (see below) in D&D, they have no Intelligence scores at all. In 3rd edition, the beast type was used for nonhistoric and fantastic, but not necessarily magical vertebrates. The beast type was merged into the animal type in 3.5 edition. A construct is either an animated object of some sort, or an artificially crafted creature. Most construct are mindless automatons, obeying