Aquarium owner here. Thinking of IoT hardware but turns out the sensor is expensive and error/breaking prone.
Thinking to create yet another social media for people to post their aquariums and track the maintenance schedule then I realized I won't have the bandwidth (time and money) to deal with storing massive amounts of pictures, or policing the content to make sure it doesn't go down like social media dumpster fire of porn, gore, politics, religion, and other offensive materials