Vibrance feeding question

I have an all male seahorse tank and everyone is thriving and seem to be growing. My question is how often should I be enriching their mysis with vibrance?  Currently I’m doing it 2 to 3 feedings per week. Otherwise it’s a straight mysis feeding. Is this often enough?  

I’m still trying to figure out the best method to use with the vibrance as it doesn’t always seem to absorb into the mysis well enough to turn the heads a little red tint. 

Just checking to make sure I’m feeding them correctly.