Thanks for the reply! I have blue, red, yellow, red/white striped Neocaridina shrimps and also 3 Amanos. They seem to get along but maybe the mix is too much? They do play around and seem more active after I turned the lights down to the 25% line a week or so ago.
Does "cold white" count as a blue source? Otherwise pure blue is at 4 %.
Regarding the algae, there are a few small green spots on the glass that I can see and they're visible only when very close. If you mean the bigger green brownish spot close to the floor of the center front of the tank it's a piece of moss that's coming out tomorrow. I'll attach a closer picture of it below.
The only plant that's still a little bit of a worry is the Cryptocoryne spec. 'Flamingo' (the pink plant) that seems very sensitive to light. It's the second time I'm trying to get that one to survive. The first time it just melted. Since I changed the settings to the present ones it seems to like it a bit more. The rest of the plants seem healthier than 2-3 weeks ago.
Best regards!