Take a look at
this gorgonian, if it looks like yours, you may search web by this name and found more about its requirements. If anything will need translation (German to English for this page), Google has Language tools, copy-paste text and choose language.
I forgot to tell
about Photobucket: on the Photobucket page with your photo copy the content of the window "IMG for forums" or something like that, and right click-> Paste into the Reply to thread window here, at Reef Frontiers. Do not use any buttons above this window for Photobucket images. Click Preview button - you should see your gorgonian's photo.
Special food, mentioned on the ID page, is Fauna Marin brand, high end specialized set of components for making mixes for the particular filter feeders. It is available in US. I'm not using it yet, but you can find all information you need by search on Fauna Marin gorgonian recipe.
Non-photosynthetic gorgonians can be fed by different foods, variety, but it should be blended to fit the mouth of individual polyp.
Flakes, dried plankton (zoo and phyto, but mostly zoo), soaked in Reef Plus (amino acids and vitamins) or Selcon (also food additive) or whatever you have, for hours (store in refrigerator), then new saltwater is added and all blended in blender.
Let it set for some time, until liquid and sediment separate. Use either of them, but discard too big pieces (you can use plastic strainer for this). Store this in refrigerator and feed coral few to several times a day.
Homemade coral food will work too, but variety is always better.
Other
ready made food is: Cyclop eeze (I'm using dried), ZoPlan, Golden pearls 200-600 micron range (yellow finger gorgonian may take 600-800 micron food), any fry food (a little too small ~50 micron, but will work as an addition to main menu). Decapsulated brine shrimp eggs were insufficient by themselves for me, only with addition of other food.
Other food from LFS:
Frozen: Cyclops (could be too big for the purple gorgorgonian), baby brine, rotifers (expensive, but guaranteed fit), Reef Plankton (orange cubes).
As you see, you have a lot of options.
Now,
feeding process:
if nobody is at home in the middle of the day, you may feed first time after waking up, second time before you go out to work or study, 3rd time when return to home, 4th time a couple of hours later, last time feed before going to sleep. It's only sounds difficult, just a matter of habit.
Density of food in water column should be quite high: polyps should be able to catch the food, and look like this (red finger gorgonian, just like your yellow, unless you have Menella):
Filtration:
If you have a good skimmer, nothing changes, it should be capable to handle this increasing of feeding. If not, consider skimmer or at least micron sock, changed daily. Some people are good with refugiums, but it didn't worked for me. Nitrates could be handled by sufficient amount of LR and water changes, and phosphates - by phosphate remover (any).
All is quite straightforward, with a lot of options.
As was said,
good flow is necessary, but branches shouldn't spring in the flow, slightly bent polyps are acceptable.
Good luck!