Based on the user reviews of the app "Tank Track" on the Google Play Store, here are three cons and pros, each limited to 15 words: **Pros:** 1. "Excellent for monitoring my tank's water parameters and receiving timely alerts." 2. "User-friendly interface and clear display of data make it easy to track." 3. "Notifications are helpful in identifying potential issues with my tank's ecosystem." **Cons:** 1. "Some features are only accessible after upgrading to a paid subscription." 2. "Lack of customization options for unit measurements and data visualization." 3. "Occasional connectivity issues and slow data syncing can be frustrating." Please note that these points are based on a general analysis of the user reviews and may not reflect the full range of opinions on the app.