Long commitment — plan accordingly

Before getting red-eared sliders please understand the commitment. These turtles live 20–40 years. I got mine as tiny 5cm hatchlings that cost very little — they are now 22cm adults in a 400L tank. The cute hatchlings grow into substantial animals requiring significant resources. I love them dearly but I wish I'd understood the adult size and lifespan properly before starting. Research thoroughly.