Residual lighting question, problems? Haze/green water

[Therapy]

Being that we live in beautiful SoCal, just wondering how everyone deals with residual lighting? We don’t have basements and we do have windows, thus I have reduced my light cycle quite a bit, down to 7 hours, with sunset and dusk to 30 min each, cut back nutrients, have an overkill cleaning crew (another issue, lesson learned), but still getting a haze, usually faint but is getting to green again with the days getting longer. Going to have my BOSS, I am OOT, cut some paper and tape it around the tank till the lights come on. We have already moved the tank once to the hall way and totally eliminated the issue the last few months (but last few months were winter, short days), was in the bedroom before with lots of windows, but can’t black out my house anymore, well don’t want too.

I don’t run charcoal except the night before a water change, but lot of Seachen Purigen.

You pros have similar issues or solutions? Advice?

[hakoomay]

What's the tank setup like? Ferts, dirted, etc? Filteration? Stocking? Lighting? Age of the tank?

[SCas]

I think LR Bretz has had something similar, maybe try looking through his channel

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[bryangee123]

So you’re getting really bad green water(algae blooms)? Look into a UV sterilizer system, like the green killing machine. Ive heard nothing but good reviews from people who use it. You can have it connected to a timer that makes it go on ever few hours.

[Nick Shades]

Instead of cutting your primary lighting down altogether, break it up.

Algae needs exactly 6 hours before it can metabolise. Plants need only 5.

Do two cycles of 5 and break your mid-day for 90 minutes. Your algae should vanish.