I completely understand that you need to tackle the problem before attempting to erradicate algae. Its been tackled and dealt with. Display tank has had its sand bed changed, Sump had to have its DSB removed later, I went through a vodka dosing regime and h2o2 spot treating algae, at the same time i limited feeding to 2 days a week. Bad combo with a anthias and some shy fish so i discovered. lesson learnt, nitrates at zero, feeding has been improved for a few weeks now, nitrates still at 0, algae is gone and i keep monitoring my nitrates to find the line of happily fed fish and too much food. I also grow macro algae in both the display and sump, a maintenance dose of vodka and have a decent clean up crew. Rowsphos also running with carbon. It was a slow battle and a few lessons learnt the hard way. Now i know to keep the food well out of reach from my son
btw, heres my current feeding regime
feed NLS micro-reef powder twice a week, NLS flake twice a week, and Frozen enriched brine 1-2 times a week, also macro-reef pellets now and then. Had more frozen food variety but my wife left it out of the freezer when getting ice cream for the kids.
as for the dotty back, if he wont leave the wrasse be, my wife wants it gone.