I tried to slide one off the glass but he wouldn’t budge! Here are a few pics. Turns out there are quite a few between the rollermat and fuge sections of my sump.
On a related note, I added a couple of batches of your 5280 pods to my tank early on after the cycle and have been really impressed with the pod population ever since. My refugium is literally overflowing with pods. Only wish I had bought my Chaetomorpha from you. Locally sourced stuff came with some surprises that I would have just as soon avoided.