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They will want to know water parmiters. Lighting and lighting schedule, live stock and feeding schedule. And if you dose anything. Also any chances to the tank recently.
There are several different initial algae blooms that happen in a new tank. Really nothing you can do about it. just keep up with your PWCs and your CUC and your tank will sort itself it.
If you have a CC mix then I would think about vacuuming your substrate. CC because the pieces are so big will trap and hold waste thus feeding your algea that you mentioned.