Trust me, I understand where you’re coming from. I was in Australia for three weeks and New Zealand for a week. I snorkeled and scuba dived all over. I saw the heartbreaking amount of dead corals, which was later explained from the increased ocean temperatures along with increases in population of Australia’s coasts, and how close the great barrier reef is to human contact on top of the amount of cruise ships and all other boat traffic. It’s sad, they should honestly restrict it for 10 years and keep boats, tourist and cruise ships as far away from it as possible.I got a chance to go to the Great Barrier Reef. I was on a plane for 24hrs to Australia. Then I was on a cruise ship for 3 days from Sydney to cairns. In cairns it was about 2hrs just to go out to the reef. I was able to see the biggest reef I have ever seen. This must be the cleanest ocean water and you still had a lot of dead Corals. Just miles of dead coral and small patches of reef with live corals. I wouldn’t put that water in my tank.
the best salt water for our tanks is the salt we mix at home. It’s like drinking lake water. It’s not a good idea. You have to filter that water before you can drink it.