Biodegradable Sunscreen
 

I know, odd time of year to be asking a question about sunscreen, but we're going to mexico in a few weeks, and we'll be in an area where there's a lot of marine life (a lagoon), and I'll be diving on a reef, so I want to find a sunscreen that's safe for coral and fish. Has anyone found a biodegradable sunscreen that worked well? I want to get it before we leave because it's super expensive down there. Any advice would be great!
Thanks

kiss my face

it's one of my regular brands, and it works great (believe me on this, lol i'm a fair skinned redhead - i know sun protection!)