From a practical fishkeeping magazine article.
"Requirements: 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.
Duncanopsammia is a large polyp stony (LPS) coral, meaning that it 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.
Place away from other LPS corals to prevent fighting."
From the drs. site
" Lighting: Low to Moderate
Waterflow: Low
Placement: Bottom to Middle"
From asira
"Common names: duncans, whisker coral, daisy coral
Natural origin: Australia, Indo-Pacific
Sensitivity (Level 2 to 3): Duncans are similar to other large polyped stony corals in terms of tolerance and sensitivity to slightly less than ideal water conditions. However, aquarists report them to have more demanding feeding requirements than most other LPS.
Feeding: These corals do well with frequent target feeding. Smaller mysis shrimp, Cyclopeeze (micro crustaceans) and baby brine shrimp are some good food choices (also any meaty food similarly sized, or chopped to the appropriate size). Variety in foods given is also helpful.
Lighting (Level 3 to 5): These corals can adapt to a wide range of lighting. They don't need intense lighting. However, aquarists frequently report higher growth rates under more intense lighting.
Waterflow: Moderate to strong water flow is important.
Placement: Prefered placement is on rock, but placement on sand might be ok (so long as it can be placed such that the polyps can fully expand, uninhibited).
General: Success with Duncans seems to depend mostly on proper and frequent/adequate feeding. With good care, they can grow quite fast and are relatively easy to propogate."
