Here’s one of the USB cameras to give you an idea. Thinking of encasing it in clear epoxy resin, adding a magnet to the back - and then the raspberrypi should be simple - power, wifi, usb camera input setup as a IP camera server (can also store locally which I wanted). This way - you can push whatever link Apex Fusion accepts and input it into the actual app for ease of use.
But while it will be badass to have an internal view of one area of the tank, it won’t see as much as a top down view. We’ll see, low cost so can run a few versions.