I also have Pink Carnation corals in 20 Gal and 5 gal tanks. First is exposed to direct bright sunlight few hours a day, and rest of the day 2x13W PC worklight. Second tank has all day working three desktop lamps (2x13W 6500K PC and 20W 50-50CF), carnation is at bottom. Seems, light don't hurt - they open regularly. More sensitive to current flow, IMO.
No noticeable growth yet - I have them for 2 monts. Feeding is Kent Micro-Vert in addition to smallest particles of seafood grosery blend and
mysis shrimp. I feed sparingly for a time being, but LFS fed big display coral reef with these corals very abundantly - water become cloudy for some time, like here but invisible particles:
http://cms.reefs.org/library/farmertodd/feeding/1.htm
Also I'm adding regularly vitamins, amino-acids, trace elements and calcium polygluconate (Reef Plus, Reef Trace and Reef Calcium - all Seachem).
After 2 weeks 5 gal corals only tank don't need hardware filtration and skimming - clears by itself after feeding (it has 8 Lb of live rock), and likes temporary bacterial cloudyness. All I use now is heater, filter without media for water movement and desktop lamps, mainly to keep live rock alive.
I had read on the web other peoples experiences: it seems that moderate light doesn't hurt non-
photosynthetic corals. My chili coral is much more sensitive for sunlight than pink carnation. But my pink carnation corals are much more sensitive to currents than chili (too little - they deflate, too much - they brace themselves against current, both times polyps are closed. Pain in the neck to place them or relocate currents!).
If anybody have info on intensity of feeding with fotos - please post it.
