When they're healthy, attaining mass just fine then rarely is spot feeding needed. Broadcast feeding to the tank, or just living off the associations with fish is often enough and yours above isn't in ill health in my opinion, just hungry possibly. Bluing light a little more will help you'd be surprised. If adjustment not possible then feed focus helps
The regeneration process is exactly like human mass gaining focus vs steady state for a while. It's handy because it's not going against any other support mechanism to feed corals, so no harm possible
Have the coral on the substrate for a while for creative catch feeding
Get up early when the feeder ring tentacles are out. Take some kind of plastic cup or something with a tiny hole in the top and invert it over the coral like a greenhouse underwater, inject or shoot food, small portion, into the hole and the cup concentrates it around the coral, remove after five mins then feed disperses. Put a weight on the cup so it doesn't shift, be creative. I saw someone in a thread so cup feeding with a heavy coffee mug they dremel grinded a hole in he he creative.
This way means you don't have to add more than you already feed, it's just creative concentrating for max mass. It's 5x5 deadlifts at 90% four times a week, for the serious
Lesser attempts work... But at least you can see it's your command on what the frag does.
Results take about three months to show, within first eight weeks not much occurs but it's changing metabolism into addition vs atrophy of the coral polyp/flesh
clearest I can get picture due to curve of bowl/down angle across substrate, I'll be able to chip off frags there easily with the bottoms as sand grain inclusions within the skeleton
