I set my tank up with all the old sand and rocks from a tank that used tap water for water changes for at least 15 years. I was saturated with phosphates. I set tank back up in August with RODI and got slammed with algae. GFO got rid of it. You probably have some phosphates luckily not bad. Tank looks pretty good from what I can tell. I would add DI as soon as you can, run GFO when you can, and it will clear up quickly.
I clean my glass MAYBE once a week now.
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