Horge,
The type that I have is V. aegagropila. There are a few fairly small patches but it is pretty easy to lift much of it off and keep it pruned back. One of the previous Mithrax virtually eliminated it but it has come back. I have found two random small globes which I believe to be V. ventricosa.
Interestingly, I removed some of the aegagropila and one of the ventricosa bubbles last week and put them in a cup of tank water, intending to photograph them later. Well, I forgot about them, and a few days later noticed that the aegagropila still had its green color but the ventricosa bubble had turned completely clear!!!!
The Valonia hasn't really been a problem, I just don't want it to spread and become one. What I'd really like to know is how to get rid of the detestable Red Turf!!!!!

Dick
