So as funny as it sounds, I'd like to get some black beard algae growing, however I just can't seem to. I believe algae is beneficial for the aquarium as well as the inhabitants. Therefore could any of you share some experiences or knowledge on how to culture algae in the tank? I currently have cherry/amano shrimp with marimo moss balls, an anubias, and some random floating plant. I dose flourish almost everyday, and try to dose API co2 booster along with flourish when I have the time. Lights are CFLs and on all day. Filters include aqueon quiet flow 10, a bio sponge filter and an aqua-clear 50. I was wondering will growing java fern be beneficial to my shrimps? Also, if I want to grow black beard algae, then if I bought a plant covered with it, will it spread throughout my tank?