Well Bubba you have inspired me. I had a chaeto refugium for a few years and it always grew like mad until a few months ago, it slowly withered away over two months or so. I’m not sure why, I thought maybe I need to dose iron but my dosing contains trace elements, so I don’t know. I decided to give the tank some time without it but I have noticed slightly slower growth and definitely more green cyano on my rockwork without it.
So because of your post yesterday I went and got some gracilaria this morning, along with another handful of chaeto and I am going to give it a whirl.