I never clean algae off my 3 sides only the front of the tank where people/me can view the shrimps/crays etc.,
Baby shrimps need biofilm and the best place to find new babies is always on the algae on the glass...its where they head first.
I run my lights 12 hours a day and have never had any bad algae in my
tanks and I have none/very rare Deaths on shrimps unless they are old ones. I keep floating plants like moss, anacharis, frogbit etc and no problems with ammonia or nitrate/nitrites.
My Taiwan babies are all doing extremely well now and 3 are already in the main tank, with the rest going into their own tank soon.