I would say your light needs to be replaced. A t8 tube will loose it's spectrum. In less than a year.
I had a lot of awesome dark purple beard algae with a 50/50 acetic, light with high ph, and a high organic load.
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My cichlids will eat it before the green.
I have recently added LED Reef lights, too a 50/50 and a 6500k t8 tubes. Since then the green algae, and turf algae have dominated. I regularly add steel fillings for an Iron supply.
What kind of cichlid is that in the pic? That bright blue color is gorgeous.


