It looks like you have all the core equipment as a lot of herbivore fish. You probably should get more snails if all you have is a few turbos. I have no idea how large a Waterbox 180 but you can take a look at the CUC packages on ReefCleaners to have an idea of what kind of snail count a system your size can take. Even if you did half the size recommended it sounds like that is much more than what you have. You should also consider a lawnmower Blenny. That is one of the main workhorse in my 110g display tank.Waterbox 180.
Reefmat, Algea Scrubber, 40 watt uv, Reef Octo 200int. I have plenty of nutrient export. Like I mentioned I was zeroing out after the first treatment of flux. Any sign of phosphates and nitrates and the algea comes back.
3 urchins 3 turbo snails, a plethera of hermit crabs and various other snails.
Foxface, Naso Tang, Hippo Tang, Tomini Tang, Coris Wrasse, 6 Line Wrasse, 2 clownfish, Purple Tang, coral beauty, 2 lyretail anthias, Starry Blenny.