Hello UKAPS! This is my first post! I need your help with some algae issues i have the past 3-4 months. I have a 24G aquarium full planted iwagumi style. I have co2 near 25ppm with pressurized co2 and Dennerle DeponitMix soil. I don’t dose any fertilizers except iron 1/4 of the proposed dose every water change. I have 4x24W Sylvania gro-lux 8H per day with 2H break at the middle of the lighting period, i change water from RO system 50% every week, my water values are PH=5 GH=1 KH=2 Temp=28C. I don’t have any PO4,Fe,NO3 tests though i have planned purchasing them next week. I have read on some posts here that algae issues means bad co2/nutrition/light combination so i decided to start a fertilization program. I already purchased Easy-Life full fertilization set and i am willing to start(when PO4,Fe,NO3 tests arrive) with 1/2 dose to see how things are going. I just want to ask if this is good or do i have to get rid of the algae and then start fertilizing? Do i have to limit my light period to 4-5H per day and start fertilizers too? What steps do i have to follow now? Any suggestions much appreciated. Here are some photos of the algae: