The site was set up by a chap called Peter many years ago. I first joined in 2006 and the site was well established then, including virtually all the fish currently in the fish profiles. Then in late 2011 the site got slower and slower and sometimes wouldn't load at all. Fast forward to April 2012, and Peter was told by the site host that the fish profiles and CC were causing the problems and he had a week to find a new host. It took 6 months for the site to get up an running again, though the old forum was lost which is why you won't find a post older than September 2012. I had a post count of over 4000 on the old forum!
I think some of the fish profiles vanished during this time. For instance, there are now just 2 cories (salt & peper and panda) but there used to a 'cory' profile containing almost all the 5cm cories under one heading.
I don't know why there aren't more fish in the profiles. As I say, the site in its original incarnation had been running for a lot longer than I've been a member. Perhaps the owner just wanted to include the more common species. As for whether there will be more, again I don't know. It has never been stated publicly on the forum but Peter told me privately that he had sold the site to Robert - and please correct me if I'm wrong, Rob. Robert is not a fish expert like Peter was, he's a forum/website expert. Which I why I became a moderator shortly after Robert came on board - the site was unmoderated under Peter's ownership as he knew a lot about fish.
I doubt very much that Robert will add more fish to the profiles or add them to the CC. But it only really affects those of us who want different fish, most of the common fish are already there.