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The Hidden Danger Lurking in Your Reef Tank: Dissolved Organic Compounds (DOCs)
If you're losing corals despite having "perfect" water parameters, you might be overlooking one of the most inconspicuous threats in reef keeping: dissolved organic compounds, or DOCs. These invisible substances, created from fish waste, excess food, detritus, and decomposing organisms, can silently wreak havoc on your reef ecosystem, causing everything from cloudy water and algae blooms to coral disease and fish death.