Okay.
1. Easy to raise: Common turtles are easy to raise, and they basically won’t get sick after being raised for a long time. And it has very low environmental requirements, just add a stone to a water basin (someone has been raising it like this for 15 years).
2. Clean: As long as there is water, turtles will basically only eat, drink and poop in the water, so there is no need to worry about dirtying the home. Install a filter or change the water frequently, and pay attention to feeding a mixture of meat and vegetables (if you find it troublesome, you can only feed turtle food), and there will be no smell at all in the house.
3. Quiet: Turtles can’t bark! If you hear a cry it means it is sick.