I'm drip acclimating a new peppermint shrimp today, for the aiptasia anemones. I've had good luck with peppermints in the past. I had bought one a few weeks ago, but he must've been eaten, because I've seen no sign of it, and the aiptasias continue to proliferate. I looked into filefish too. My concern is that once they eat the aiptasias, they will go after something else. If I decide to add some zoas, I may consider one, as a grazer to keep them from overgrowing.
One thing I've noticed, after removing a huge amount of caulerpa a few weeks ago, is that my tank doesn't soak up the nutrient additions as quickly as before. So instead of increasing the nitrate dose, I need to decrease it. I also tried out the new iron supplement over the weekend. It's the Flourish brand, which is a little different, because it is the ferrous (Fe+2) form, rather than the ferric (Fe+3) form that I've used in the past. It's supposed to be more easily taken up by the plants, but it clouded the water for two days. I'm going to halve the dose for awhile. It definitely worked though. The reds are redder and the greens are greener.
All but one of the codium frags I had glued to the fake roots came loose. So I had to hand tie them - PITA! Putting two hands in the tank is tricky. A little while later, the last glued one came unglued…