I use DI
water for all top off's and water changes. I think that it my have been some freeze-dried brine shrimp I was using.
I was putting tons of it in the tank to feed both the fish and the coral. Big mistake - I got a HUGE brown algae bloom.
Since I put it in there, the water is crystal clear! It has been in for about 6 hours. I would take readings on my phosphates, but I HATE my 2 phosphate tests. I just have to assume that the phosphates are at zero.
I know it's expensive, but I've got two corals I need to keep. I've lost all of my fish. I've got to start taking steps to save something.
Things are looking up