No. It's not recommended, especially with betta fish male or female, to house more then one in a one gallon tank

Yes.  But most experts will say it’s not a permanent solution, that even bettas require a larger tank and some filtration and heat.

Hi jg8888, All our pet products are tested by a certified third-party testing lab for safety and reliability. This tank is made with durable PET plastic and the rim is PP plastic. These plastics are typical plastics used in similar fish bowls across the industry. The bowl undergoes drop testing at the third party testing lab and at manufacturer to ensure they do not shatter if dropped. The bowl should be cleaned regularly and old water replaced with fresh water weekly. Place the tank out of direct sunlight for pet safety & health and to prevent outgassing. While this bowl is suitable for a Betta, it would not be suitable for most tropical fish. We recommend larger kits for tropical fish and also have many other options for Bettas in store and on our site. Thanks,

get your fish out of the tank and buy a 5.5-gallon minimum.

um no no you can not put a guppy in a bowl, either can you a betta, they need heating, filtering, 2.5 gallons minimum.

If you put a snail in here there's a good chance that it will crawl out of the bowl. I would just put a pretty ornament in it, a silk plant made for bettas, and your moss balls. I have one set up next to my betta's tank that I decorated with a silk betta plant, some pretty gravel, a mermaid ornament, and a couple of moss balls. (My betta also has his own moss balls.) For a snail, I would look for something with a top. Petco has a few on their site that'll work.

no fish can live in a 1 gallon but it will do good for shrimp hope this helps;)

Probably about a month. Order at least a 2.5 gallon tank if you want your betta to have a somewhat decent life. 5+ gallon is the way to go.

Hi supermagicpuppy, It is 1 gallon. Thanks

No, this fish bowl isn't big enough for them. I recommend you look into getting a 5 to 10 gallon tank. You'll also need a filter and a heater as they are tropical fish. You also should get some gravel as well as plants for it. Silk is good & looks nice in a tank. I also recommend you pick up some moss balls as they help with the ammonia found in fish waste.