toxins in tank

While I was cleaning my Fowler 160 gallon 40 gallon sump. I turned my ice cap in sump scrubber pump off but left the light on so I could see to vacuum the sump. I left it on for the entire time that I was doing my water changes and cleaning some algae off of the rocks. While refilling I noticed...

I am really devastated. I have been working on creating a sustainable ecosystem (indo/central pacific and heavily Hawaiian islands) with my saltwater tank. I want to breed a variety of specific hard to get species so that the aquarium trade doesn’t continue to have such devastating effects...