Best kind of algae grazer for nano?

[asylumdown]

definitely not dino, it's coarse and firm. I should have taken the pic before I cleaned the tank lol. It's got a solid foot that anchors it to the rock and as it grows it branches. It's like a grey green colour, and when it's fully 'mature' the tips get lighter in colour and really fuzzy looking. It also get really, really bushy. I think it's in the brown algae family.