If you are talking about CSA? When we were there the end of Jan., we had fish tacos for lunch at Seagrapes........delicious. First time we've had them, but the next trip we will visit Seagrapes more often.
When we were there in December they had fish taco's for the first 4 days and then changed the menu and did not offer fish taco's. I forget what they had instead, but we didn't get it. We still got the sweet potatoe chips and dip every day, but were very sad we had to end our trip with no fish taco's!
CTI and CSA have fish tacos at their veggie bar and Sea Grapes - however the menu does rotate and they aren't offered every day. It's usually rotated with a snapper sandwich (which is also yummy) so the person may have tried to order them on an 'off' day. They also rotate the sweet potato dips as well so the same ones aren't offered every day.
Seagrapes should definitely still have the fish tacos. I'm pretty certain that the menu changes twice weekly. I think Tuesday is definitely one of those days. So for part of the week the fish tacos will be on the menu and the other part of the week it will be the snapper sandwich. Maybe a recent guest can confirm this for us??