I have a large colony of zoas I bought from someone who had the lights off for 4 days. I've had them in my tank for almost a week and some seem like they are trying to open, but just half-hearted, so I planned on a iodine dip. I usually use Lugol's but I'm out and the store only had Kent's concentrated iodine. For those who use Kent's to dip, how much to you usually use?