Sps are hunters, and pure survivors.
If you grant a regular source of food in the water column and that food is as good and complete as easy reefs and EVO, they will start loosing their full need of eating via zoanthelas and they will improve its color.
EVO is a plancton gel with complete aminoacid and rich in protein and lipids.
Easy booster is a fitoplacton gel.
Getting both you grant a quality nutrition. In my opinion, none better than it.
Automated makes regular presence of food at the water increasing pólip extension, color and overall health of corals.
And it's so comfortable.
The manufacturer is very trusted and they manufacture every product using the best sources of foods and the best methods to create the gel without loosing any of their properties to grant the qualities of the final product. (in Spain we've been using it for years)
I do recommend you it use.
Just if you start with Evo, make sure you measure KH, CA and No3 y Po4 since it activates growth, they quickly increase their demands and can lead to problems if you don't test it regularly.
Any doubts I will happy to help!!