Looks like it's growing lol

What I have had success with is a kole tang in my frag tank and not feeding it. I've had one in there for a while but I always fed him a little. I stopped and my frags are all clean now. I guess I need one in the display again.

After I tried the Tech M solution, I did just keep using it for my mag supplement hoping it would help, at least some what. Never noticed a difference really.