I can accept green algae, but not black beard algae which is fluffy, ugly and aggressive. It can take over, covering even heater and filter intakes. I hate it in my planted and non-planted tank, and have to combat BBA with H2O2 and Excel.
Stanzzzz has another thread on "natural habitat of cichlid".
https://www.monsterfishkeepers.com/forums/threads/natural-habitats-of-cichlids.670096/#post-7526143
In review of the the "natural habitats" of CA/SA, they aren't prettier than man made aquascapes. Many have dusty water, debris, and objects heavily covered with fluffy algae, not the pretty green ones, but what appear to be brown or BBA.
The few pleasing natural habitats I've seen are African rift lakes with crystal clear water and green algae covered rock, and coral reef.
So the beautiful nature aquascapes, bioscape tanks, nature aquariums, etc are all man made fantasy.
That's a matter of opinion,not really a fact.
Beauty is in the eye of the beholder .
C/a and s/a biotopes in nature are so varied that the dusty type you describe and underwater paradises can be found.
When I wrote this thread I did infact point out that people have different tastes and the leaf littered natural look will not be for everyone.
From the feed back I have received so far,it seems quite a few do like it.
In fact you are the first to show any views to the contrary.
You can't please everyone and I didn't expect too.