Disposing of a dead Betta splendens Veiltail should be done respectfully and in a manner that is environmentally safe. Do not flush the fish down the toilet, as this can spread diseases to wild fish populations. Instead, you can bury the fish in your garden, which also serves as a natural way to return it to the ecosystem. Alternatively, wrap the fish in paper and dispose of it in the trash. Some areas may have specific regulations for pet disposal, so it's advisable to check local guidelines.