That Halimeda stuff does look cool but it's good to know that they take in a lot of calcium.
How do you control chaeto though?
I have a hang on 'fuge and it's taken over almost completely.
I've seen others that are able to keep it under control in some sort of egg crate thing.
I trim it and it grows so big fast.

When I set up my 100 gallon, I don't want it to over take my 4 foot 'fuge.
I want to add some other macro algae and/or plants.
Which comes to my next question, who carries good stuff for the 'fuge??
And what do you recommend to be put in a 'fuge?