Asbury030
Community Member
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.
