Black sewing thread has never failed me in the past. By the time the thread dissolves, the plants have long since taken root firmly.
Tank looks great Joey. I just picked up a few Java Ferns for my Orinos and attached them to driftwood. I really really like the look of it. Can't wait until it settles in and really takes off.
BTW, got any updated full tank shots? Lord know I never get tired of looking