HELP! Open Brain

[Kermit13sg]

Is this considered bleaching? It was all purple and nice but since I set my Hydra to acclimation mode for a new coral, it starting turning pale at some areas. It is still eating and expanding during the day.

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[DaveK]

Corals often go through this when the lighting changes. Your lighting even turned down may still be too much for the coral. Brain corals like this usually like fairly dim light. Since it's still expanding and eating, I wouldn't worry about it. With actual bleaching the coral is still alive but looses all it color and looks close to white.