Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to help a betta fish live longer [title] Pick a healthy fish. [step] Make sure to acquire your fish from a store or person that takes good care of their stock. It can be difficult to tell what your fish's life was like before you got it.

Ending1: If you find out about their life expectancy before you buy a new one, seek out the best fish for your betta. [substeps] Be wary of potential sellers who pretend to be healthier when actually putting out the best fish. Ending2: You might not know how old it is, or if it could be carrying illnesses. Betta fish in the store can be stressed, sick, and kept in poor conditions. Ending3: Check with a local fish and wildlife organization to see what they feed their betta. [substeps] Make sure to get a proper tank for your betta. Ending4: However, the more you make sure it has a nutritious and loving habitat, the better your chances of having a healthy and loving fish live longer. [substeps] Bettas are a popular, albeit expensive, fish food.

Answer format: ending1/ending2/ending3/ending4