If you stop to watch your betta for a few minutes you will see him surface, sticking his mouth above water, to suck in air. Though they have gills, they still rely on their labyrinth organ (similar to lungs) to gain oxygen from the atmosphere. This allows them to survive in poorly oxygenated waters where other fish species would suffocate and parish. Betta fish spend much of … [Read more...] about Betta Fish Hammock