I am looking to check my tanks par, I currently have 2 ReeFi Unos but I just recently bought 2 XR15s and was looking at setting them up but wanted to get an idea of what the Unos are producing so I can match that with the Radions and then make any adjustments from there. I have an Apex so was curious what people thought about their par meter and how accurate it is compared to an apogee. I’ve read that some readings need to be adjusted, what meters don’t need an adjustment? If you have the apex meter would you recommend it and do you find it accurate or would an apogee be better?