little update: i changed the design, no more transparent tubes because algae grow inside and clogg it. I've also updated lights and canvas, now i have a total of 6w, red and blue led lights.
changed light at day 7 , now i have a total of 10w red and blue , here is a picture at 15 days. There is a little hair algae type and a paler patch in the middle where the lights are stronger, is it normal ? i'm running 18h on and 6h off lights .