Based on the users' reviews of the idle aquarium 3D app, here are three pros and cons: **Pros:** 1. Adorable 3D animations: Users rave about the app's realistic and cute fish and aquarium decorations, making it a delightful experience. 2. Relaxing and engaging: The game's idle mechanism and frequent updates encourage users to come back for more, providing a sense of accomplishment and stress relief. 3. Regular updates: The developers consistently release new content, such as new fish species and decorations, which keeps the game fresh and exciting. **Cons:** 1. Microtransactions: Some users criticize the app's monetization strategy, stating that it encourages excessive spending and feels unfair to those who spend less. 2. Limited customization options: Users wish for more flexibility in customizing their aquarium, such as more decoration options or ability to change aquarium size. 3. Glitches and crashes: A minority of users experience technical issues, such as crashes or stuck animations, which can be frustrating and disrupt their gaming experience.