Hi Des

Its BBA or black brush algae. Shes a tenacious bitch
You have this because either:
A) You are using too much light and no co2.
B) You do not have your co2 high enough.

Generally if you add co2 (30ppm stable for the entire photoperiod) your BBA
will stop growing. You will have to manually remove what is there now, that
won't go away by itself. Good luck.
--
Kind Regards
Cameron

"Desmond Wong" wrote in message
...
Hi all.

I have spent quite a lot of time on the internet trying to find out, but
cannot work out what type of algae I have...

I have a picture of it he http://www.deswong.com/images/algae1.jpg

It is black, and starting to grow in all places. I cannot seem to get rid
of
it by less light, so I am looking to find out what type exactly it is so I
can see how to remove it.

If you can assist at all please drop a reply to the newsgroup.

Thanks,

Des.