Tank's looking OK, a bit of the HC is dying off... still lots of bright green growth though, I think it'll bounce back. There are still a few small spots around the tank with cyano - cm x cm patches... but they are not spreading... or they are spreading VERY slowly. I will do a bit more manual removal tonight
The good news is, I am getting a CO2 cylinder tomorrow! My dad sent me a bit of money for Christmas and I decided it would be my present to myself this year. It is an aluminum tank, just hydrostat yesterday, he said some kind of valve had to be replaced on it?? So it is more or less a brand new tank. It should be here tomorrow morning, full too! Whee!