Is this from having too much light on ?

[Sfplaya1]

 

[tdileo]

If you have a window nearby hitting it that may be a reason. As well as excess nutrients, lighting, etc. not easy to be 100% certain which one it is

 

[Sfplaya1]

If you have a window nearby hitting it that may be a reason. As well as excess nutrients, lighting, etc. not easy to be 100% certain which one it is

Definitely has to be windows. Considering there's 1 on the left and about 3 on the right.

 

[tdileo]

Definitely has to be windows. Considering there's 1 on the left and about 3 on the right.

Yep my tank in my room gets algae like that but only on the front glass, where the window next to it hits it. The fastest way I can get it off is a razor blade and then you have to hit it with the mag float every day so it doesn’t grow back

 

[Sfplaya1]

Yep my tank in my room gets algae like that but only on the front glass, where the window next to it hits it. The fastest way I can get it off is a razor blade and then you have to hit it with the mag float every day so it doesn’t grow back

I wonder how everyone would look at me when I change the bright see through curtains in the dining room into pitch black curtains.

 

[Flippers4pups]

Definitely has to be windows. Considering there's 1 on the left and about 3 on the right.

There seems to be a difference in indirect ambient sunlight and direct sunlight exposure that has a direct correlation to algae growth. This is also dependant on intensity and duration, as well to the amount of dissolved nutrients available in the water collum to feed the algae.

If sunlight is directly hitting the tank, using shades to keep this from happening will correct the problem.

If indirect sunlight is causing this, look more closely at the amount of nutrients in your water collum. N03 and P04.

 

[Sfplaya1]

There seems to be a difference in indirect ambient sunlight and direct sunlight exposure that has a direct correlation to algae growth. This is also dependant on intensity and duration, as well to the amount of dissolved nutrients available in the water collum to feed the algae.

If sunlight is directly hitting the tank, using shades to keep this from happening will correct the problem.

If indirect sunlight is causing this, look more closely at the amount of nutrients in your water collum. N03 and P04.

no3 = 0 and po4 is at 0.25-0.5 according to api test kit.