So there is this free app called Photone. It's used mostly by indoor gardeners to test PAR levels. This morning I had the brilliant idea to put my phone in a plastic bag and dunk it in my tank to see how it works. I'm currently waiting for my lights to ramp up so I can try it..
When I first got the idea like an hour ago I messaged the company on instagram to share my idea. Like all of my great ideas, someone already thought of it.. They responded right away with a recent blog they wrote up about this idea. And they even have some calibration tips. Here is a link to their blog: https://growlightmeter.com/underwater-par-measurements-for-reef-aquariums/
When I first got the idea like an hour ago I messaged the company on instagram to share my idea. Like all of my great ideas, someone already thought of it.. They responded right away with a recent blog they wrote up about this idea. And they even have some calibration tips. Here is a link to their blog: https://growlightmeter.com/underwater-par-measurements-for-reef-aquariums/