Help with this algae problem

OK this is getting annoying so I have algae in all my tanks I’m not talking about a little bit I mean the entire tank the walls the substrate the plants the wood I have three tanks up right now two of them have fish algae covered I scrub them about every week the algae just comes back the next day I have tried turning off lights for days inn risk of my plants I have tried algae killers algae eaters like snails and right now I have some shrimp and snails nothing they can’t keep up I scrub it to please help I just want the algae to be gone in a little bit but not a blanket every morning

 

Can you add photos?

 

Can you add photos?

I just scrubbed it about a week ago

 

It looks as though your tank is near a window? If so, natural light is a big contributor to algae. Particularly sunny windows. Try putting an aquarium backdrop on the the side of the tank that faces the window and reducing the time your tank light is on. See if that helps.

 

It looks as though your tank is near a window? If so, natural light is a big contributor to algae. Particularly sunny windows. Try putting an aquarium backdrop on the the side of the tank that faces the window and reducing the time your tank light is on. See if that helps.

The worst tank is actually by a wall but it does have a light the second tank is my window and it was blacked out at one point it’s still really bad

 

Algae and other plants will be influenced by light intensity, light duration, nutrients and CO2. Whenever those 4 are out of balance, problems can arise. Any tank near a window can have the side /sides that are exposed to the window covered permanently. using floating plants can decrease the light from above that reaches the tank. Don't keep your light on longer than 6 hours. The tank by the window needs no light fixture.

Are you fertilizing? How heavily stocked are the tanks. How much do you feed. How often and how much do you change the water? What is the nitrate concentration prior to your regular water change.? How long are the lights on for?