When purchasing Betta patoti, it is important to assess the fish's overall condition: it should be active, without visible damage, ulcers, or white film on the body and fins. Avoid individuals with sunken bellies or signs of emaciation, as this species is sensitive to stress during transportation and changes in conditions. In the store, fish are often timid and may hide, so it's worth observing them for a few minutes: healthy individuals show curiosity and react to movement. Since the species is rare and expensive, it is recommended to: — clarify with the seller the conditions of keeping and the diet to which the fish are accustomed; — check for signs of stress, such as apathetic hovering near the surface or, conversely, chaotic movements; — if possible, choose young individuals, as they adapt more easily to new water parameters in the aquarium.