Yeah the GCCA swaps are always fun. I dont miss any of them. One thing you have to realize though is that it will be VERY crowded. Last swap had over 800 tickets sold. That doesn't include the scammers that save the ticket from the previous swap and use it to get in. I imagine there were close to 900 people there.
Lots of good sellers there. You should expect mostly africans, but also CA, SA, etc. Almost everything is cichlids but you'll also find stingrays, plecos, discus, and some oddballs every once in a while.
Cya on the 13th!