I ended up adding a melanarus wrasse to control my flatworm population. So far everyone is getting along, though the yellow watchmen gobies dart to their cave when he passes by. I realise he will grow too large for this tank, but I have already planned a future upgrade to something in the 120 gallon range in the next year or so. If he gets too big or agression starts before then, i will rehome him.
I also added some more zoas and euphillia to this tank to hold until my nuvo 10 desktop build is ready for them.
That's all for now folks, enjoy the video of my tank!