Here is some feedback for buying berghia from Salty Underground shared on Reed Central recently.
"I received my order from Salty earlier today and wanted to comment on ...
~ By Reef Central
Saltwater Macro Algae
Macro Algae improves the water quality of your marine tank by absorbing nitrates, phosphates, carbon dioxide, and some metals. It also adds a natural biodiversity to your saltwater aquarium while serving as a food source for many marine species! Please see this article for more information about how algae can affect your aquarium.