Why are my new betta fish dying so fast after bringing them home?
As long as you are properly setting up the environment for your new fish, not stressing him out too much, and making sure he is happy and healthy, he shouldn't pass away at a certain time of day.
A google search can give you a myriad of information about how to care for your betta, however most do best in an actual tank with a proper filter and heater to keep things warm and fresh, a lid to keep active bettas from jumping out and becoming injured, and for males, no other bettas or aggressive fish in the tank. If you're unsure if your tank environment is safe, most pet stores will test water samples for free and point you in the direction of any changes you need to make.
Updated on September 23rd, 2025