One of my Java Ferns has black spots/blotches on some of its leaves. I had a couple of outbreaks of black beard algae and have been dosing daily with Seachem Flourish Excel which has cleared up the beard algae and all the Crypts are really looking healthy and vigorous. Shrimps have bred and there are now tiny shrimps all over the place, how long they will last with the Neons, I don’t know.