All frags doing well, growing like crazy, but no place to put them until I get the Xenia under control. So .....
I got fed UP with the Xenia, so Goat de-wormer to the rescue. This is a diluted form, 10 drops, and 48 hours later Xenia started to suffer. The horrible iPhone pic below shows where I am as of last night. No changes other than the Xenia. I feel like the biggest risk is a going to be a nitrate spike and possibly slower growth, so keeping a close eye on KH, keeping the skimmer cleaned, and dosing a little NOPOX to help increase nutrient reduction.
Fenbendazole is the active ingredient, and the safest form is a pure powder, but I can't be bothered to mix and calculate. The Goat version is the most diluted form I could find on Amazon. You can search for it. From what I've read Xenia is so sensitive to this stuff that even residue left on SPS from dipping can seriously knock them back if not kill them outright over a period of days. It does harm other softies, which I don't have, and can stay in a tank for months even with carbon and skimming. In other words, use at your own risk, I'm not the expert here. No reports of fish or shrimp problems with this, but crabs seem to be sensitive, though some of these stories come from people who have radically overdosed (in my opinion).
I pulled a bunch of Xenia out that had climbed over some acros and did serious damage to a digitata. It's gotten to the point where if I leave the tank alone for a month I'm in for a huge pruning job and some SPS will be damaged. I've had it.