Thanks everyone, I think I will try adding a threadfin to the mix. I will have to get one on order.
I have already added 20 berghia to the tank about three weeks ago and have not noticed a difference in the aptasia level. I know this is a big tank and they are small critters, but I have only seen one since they were added. I like the idea of adding them to the sump, should have tried it that way first. However I am not sure if the larvae would make it safely to the tank, but if you could breed them in the refugium, you could always transfer some to the tank. I am going to be replacing my sump and refugium here shortly, but once the new ones are in place, I may try that.
I have already added 20 berghia to the tank about three weeks ago and have not noticed a difference in the aptasia level. I know this is a big tank and they are small critters, but I have only seen one since they were added. I like the idea of adding them to the sump, should have tried it that way first. However I am not sure if the larvae would make it safely to the tank, but if you could breed them in the refugium, you could always transfer some to the tank. I am going to be replacing my sump and refugium here shortly, but once the new ones are in place, I may try that.