Duncans corals are priced £5 per head but savings are made with purchase of more heads .
Duncan’s corals live in deep waters, near sand, so in the main use blue spectrum lighting, at around 20,000K, or place them away from the main beam of a metal halide. Multiple T5 lights will be fine.
Duncans typically feeds on zooplankton and doesn’t demand the very strong flow of small polyp stony (SPS) corals.
Give it adequate, but not too strong flow and light, feed regularly with frozen Cyclops, brineshrimp nauplii and proprietary coral food, and it should do well.