I can understand why las would want to seperate his chalices from his rock with that eggcrate, I have been paying super close attention to my chalices and after adding some emerald crabs I have noticed some small cuts on the rims of some chalices which have slowed their growth, prob from the emeralds cleaning around the chalices. In addition to this damage the crabs steal the food, amphipods, fish and worms also are terrible about stealing food. So if your going to try and target feed corals in general in your average garden aquarium you pretty much have to broadcast feed, or at least feed all the other creatures that make the ecosystem work.
as far as if target feeding is better than broadcast feeding... and with all respect to those who broadcast feed (already discussed it is a necessity in most systems). I believe it is the obvious answer that target feeding will increase growth. You are simply increasing the chances that every mouth intakes food, and thus increasing the overall amount of energy the coral intakes, so increased growth. Broadcast feeding is just not as efficient a method of feeding.
i guess the question is... Do you want to have a beautiful garden tank that looks similar to a slice of the ocean and thus is a little bit less forgiving? (the ecosystem as a whole shares all the food, crabs take what they want) or Do you want a tank that is designed specifically for coral growth and not as pretty or natural? (feedings are as efficient as possible)
It seems to me you are somewhere in the middle right now with that eggcrate statue. I have chosen the efficient path. My tanks look unnatural and I am the guy thats up all night feeding every mouth on every coral. I wish I had a beautiful tank like mpoletti's (great tank man!) where I could just throw food in the tank and forget about my chalices.
"It is highly probable that the nutrient availabilities in most aquarium systems are not entirely consistent with the heterotrophic needs of corals, and that increased feeding coupled with increased nutrient export is highly desirable (Eric Borneman - Aquarium Corals, p 65)
as far as the lighting issue las, I have been thinking of working on some sort of list for lighting recommendations for our lineaged chalices, except the list I envision has PAR values for the chalices, like maybe people with PAR meters can plug in numbers for each named chalice. That way its not a vague sort of high light low light thing, although I think descriptions of each chalices preferences should be included. I actually started a thread to gather info about PAR values for chalices after coming up with little info in my research. Please feel free to join and add input everyone. Thanks!
http://www.reefcentral.com/forums/showthread.php?t=1784255
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