My problem algae. I have two items and there very common
1. Derbesia. Hair Algae
2. Valonia. Bubble Algae

1. Feeding- I have reduce it to almost none
2. Liquid Foods - I use this for the coral but have not used it in 6 months
3. Vitamins - never used it
4. Tap water -RO/DI and tested
5. Cyanobacteria - Haven’t had this for years

I had a bunch of hair algae and a few Bubble algae. Since I change to a cheap 6500K GE light bulb, because my My VHO equipment went out,  the bubble algae has bloomed.  I will fix that soon.

The recommended fix is as follows

1. protein skimming.  I have a turboflotor.  I have plans to build another skimmer, downdraft skimmer. The turboflotor works adequately as long as you clean the whole.

2.  denitrifying zones.  Most nitrate removal can be accomplished with the sand when it’s done properly.   To keep the sand working get this working,  I will need to get a sleeper goby and a sea cucumber.  A serpent star “brittle starfish”  may help.

3.  Algae Filtration.  I have added a macroalgae in my sump with a lamp that come on when the lights on top goes out.  I have added carbon to the end of my protein skimming. 

4 Herbivores.   snails. sea urchin crustacenans and fish.  The most efficient  herbivorous fish are tang with the genus zebramosa.  gobies such as those with genus amblygobius.    snails such as astraea tectum and astraea caelata. These don’t get too big.  Adding amphipods also can help.