If i remember correctly, green ribbon seaweed might need a bit iron to grow, u may wish to add chelated iron, I kind of forgets.
Anyway, good try ! Really apperciate your contribution ! At least we have something new.
Just like when people started using mangrove.
I feel that, in reefing, we should always try new things, share knowledge, no matter its right or wrong, just to have an active discussion.