Sadly just after my Vesicularia sp. “Christmas“ (“Christmas Tree Moss”) got going, so did the hair algae growing on it. I have been trying to keep it under control, but it is winning the battle at present.
After a bit of digging around for info, I haven’t really come up with any obvious cause, other than it may be a lack of nutrients – as I have been only adding a very small amount of ferts. This kind of makes sense as the fast growing Echinodorus Amazonicus (“Amazon Sword”) is also showing signs of a lack of nutrients.
Suggestions for removal extend from pulling it out with a toothbrush/comb ( what I have been trying so far) to taking the whole lot out and bleaching it. That is a last resort as it wont be a simple case of taking the whole piece of drift wood out that it is attached too, as a large amount of that wood is buried in the substrate.
What I am going to attempt is a real heavy session with toothbrush and comb – then introduce some Amano Shrimp (which were on the plan anyway – and are known to munch on this stuff) and start adding more ferts… so it could get worse! 😦
Aqua Diem 
did the amano shrimp work? i have had a major problem with the hair algae covering most of my gravel and growing up some of my plants. i regularly fertilize the tank with no apparent impact on the algae. i have tried on many occasions to remove the algae from the gravel and plants but it seems bind itself to the gravel, it is very very difficult to eliminate. i am looking for a natural solution to this problem, some sort of algae eater or something, i have shrimp and snails and a fairly diverse community in addition to fish so i am leery of going with a chemical solution.
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