Do you eat every day? Or only every 3?
Feeding every 3 days is starving your fish. Never starve your tank to combat algae issues, up your filtration game if your having algae issues.
FWIW.......
only issue i see is some diatoms. Could be coming from the distilled water, or as with most new tanks, it's the sand. If your not adding any silicate, then they will burn out as the silicate is used up.
Remember, our tanks shouldn't be pristine white rocks. If you can't grow algae, you can't grow corals.
