black beard algae

75 gallon planted tank, discus, neons, Siamese algae eaters, plecos. If anything, over filtered. Maintains 78-80 degrees. Lots of light. Purchased plants brought black beard algae. Been fighting it ever since. Other algae (green) sticks to EVERYTHING. Hypochlorite won't even bleach or...

I have a stingray LED light on 6 hours a day and dose "easy green" liquid fertilizer 1-2x a week. This hairy, fuzzy black algae loves my jungle vall and moneywort, but also affects other plants. What is it and how do I get rid of it?