Sorry I missed this when you posted. I agree with Eric, I have always given them food in the container they're shipped in (or came home in), as this gives them an opportunity to eat before going in the tank and I usually take my time with inverts when acclimating (unless the water is funky looking, then it's about getting them to a better place as quickly as possible). I check salinity and if it's pretty close, then I remove half of their water, then double the water (usually steady drip) then wait for them to climb aboard a piece of rubble or whatever the aiptasia I gave them is on, then I try to dump out as much water as possible, then wait until lights go out, turn off/down flow, then put the whole container in the tank and move the rubble near rock with aiptasia close to them. If their cerata is completely white with no pigment or color at all, then they are hungry and need to eat asap. If there's a little color at the base of the cerata, then they've had a meal, but are hungry. The picture above that Eric posted shows berghia that have just eaten or had a meal within the past 24hrs. Healthy berghia will always have dark cerata, if not, they are hungry or near starvation. As mentioned, they don't live long without food. These guys only live 10-12 months at most, so a day without food is a long time to them.