Why Do Acros Turn Brown

Even your most colorful acro will have brown lower branches when they get shaded enough by the top growth.

Why are my corals going brown?

Browning generally means the coral needs more energy and therefore encourages more zooxanthellae, but you’ll want to make sure that symbiotic algae has nutrients to use as you bring lighting up.

Will bleached SPS come back?

As long as everything stays stable they should come back. Try shading them from full light.