Switching lighting on clam

Fliger

New member
He freaked out a bit. 6" Squamosa, when I switched from a 150W 10,000K to a 250W Radium (HQI ballast), he reached up quite a bit, like he was looking around. Did this the whole 2 hours I had it on.

Do clams need to be acclimated as much as SPS corals to new lighting?
 
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