Janine, one of Paul's inventions is sitting in the office, you can try it yourself on aiptasia tomorrow

I think it isn't as ideal for them as the aiptasia have less flesh and are harder to get a good grip on. If you can, they get zapped for sure. I'd also be careful using this in a small volume of water. I tried it in a 12g. nano and while nothing was permanently harmed ( other than a few of the aiptasia) several things weren't happy and closed up for the day. I was told Bromide might be one of the gases released and that can be pretty toxic stuff.