Lux meter help

[Asbury030]

So for a mixed reef mainly LPS and soft coral what would be a good measurement at the top of the water line?

I'd say let need determine how and what you measure.

I've set up and tweaked quite a few lights only by measuring at/above the waterline. It has been sufficient.

That said, it's not hard to put your meter in a ziplock bag (spring for name brand and high end) to get measurements underwater....it has been done. :)

Some of the other brands mentioned make waterproof meters, BTW....costs extra, but then it should. :)