Just my 2 cents... I have used Joe's Juice on aptaisias in tanks with delicate rose bubble tip anemones with not ill effects. You need to apply it directly in the center, it will make them melt and them I use a turkey baster to such out the remains of the aptaisia.
A few years ago my young daughter had her very own 2 1/2 g. pico. She desperately wanted an anemone. Her uncle gave her an aptaisia from one of his tanks. That satisfied her, she was happy although clueless, poor thing. It got food when the tank was fed and it started to grow and grow until it was enormous. It was rather prettty for an aptaisia, it had delicate stripes and had the quickest feeding response I have ever seen, it ate everything and anything. (wish I had photos, never wanted to show anyone, I was embarassed) It was around 3 or 4 inches across. It never reproduced in the 1+ year we had it. Durring reaquascaping, it was damaged removing it, my brother kept it and it healed but never regained it's glorious appearence that it had in Sam's pico. I think Dave still has it, he thought it would be a shame to destroy it, it really was pretty.