Thanks Michael! I'd love to have populate my sandbed with seagrass too like what you have done. C.Prolifera is enough to fool the seahorse for now
I looked up on that brown algae a little bit more and found these (Halymenia maculata)
http://www.wildsingapore.com/wildfac...a/maculata.htm
http://www.algaebase.org/search/spec...pecies_id=2009