Fluval Aquasky light and blackbeard algae.

[Country joe]

I have been getting blackbeard algae off and on, so now I have cleaned it off my rocks, wood, etc but I want it to stop returning.
My plants are low maintenance and I don't have co2, I clean my tank once a week along with a 25% water change.
My aquasky was set to sunrise 8am till 9 am. Sunset 16.00 to 17.00. Sleep nil.
White, 100%, green, 75%, red, 85%, blue,15%.
I now have set it sunrise and sunset remains the same. Now set.
White, 70%, green,60%, red, 50%, blue, 10%. This setting was taking from google for black algae, will this setting do?

 

[Jinx_]

This is how I have mine set up:

So I don't think the light's an issue here.

Is this a new tank? Is it cycled? Do you dose any fertilisers?

 

[Country joe]

I thought blue was bad for algae, yet I see you have blue 100%
My tank is a year old 200 litre, fully cycled my plants are mostly vallisneria, one sessilifrora, and four small plants on the front. I use fertiliser tabs, and10 mls weekly of TNC Complete weekly. I have done phosphate testing and it's always nil.