I give up! Birds Nest & I don't mix...

[Aquattro]

Strange, my tank has pretty much gone to shite, yet my pink birdsnest has stayed vibrant and keeps growing. Which is good, because I think this is the last of the colony that it came from about 5 years ago (thx Shao!)

[fooser]

It looks like too much flow to me.
I also agree with Laurier on the possibility of too much light too quickly after being introduced to a different system with different parameters than they came from originally. Hope it turns around for you though.