Black beard algae starting on my madagascar lace fern
Help! I noticed today my Madagascar lace fern is starting to grow black beard algae. Any ideas how to stop the growth? It has been in the tank for about 3 months and some of the leaves are well over two feet long. Should I cut them down and start all over? I dose excel weekly and flourish daily. I add potassium twice a week, the tank is at 74degrees because I read they do not tolerate heat well. I hate to lose the plants they are just beautiful. Thanks for any help. Oh and I have the lights on 4, off 4, on 4, off 12.