Oops, wrong one!
That's the stuff!
Once again I have a bumper crop of Chaetomorphia sp. macroalgae. This is one of the best things there is: creates a habitat for 'pods and is fun for little cuttles to play in, and oh, don't forget--it sucks down nitrates like they're Coca-Cola! It won't release gametes into your tank, get you arrested in the state of Florida or destroy the Mediterranean like competing macroalgaes!
PM me if you have Paypal and are interested. I'm charging $14 for a grapefruit's volume. That includes shipping charge, box charge, pinstriping and undercoating. I have two positive feedback!