An update! I forgot I had this thread and while researching to find better ways of wiping out algae i rediscovered it!
I'm sure by the last sentence you guessed that I'm still not rid of algae and you will have guessed rightly.
ill post a picture showing the situation but its basically not good no amount of ripping out upping of co2 and fast growers seem to have done the job yet. and now I have staghorn to add to the list.
also I managed to kill all but the tiniest amount of HC repeatedly tearing out algae which up rooted it and my pelia the pelia took it in its stride the hardy plant that it is but the HC soon melted which is a shame since A) it had finally started to grow in and B) I'm left looking for another foreground plant to take its place.
any way thats the words ill post a picture when I find my camera.