Actually the one in the first pic is a LTA.. The second one could very well be an LTA too.. They are also called corkscrew anenomes which is what its tenticles look like. Anenomes can look very different from one to the other in the same species. My BTA doesnt have "bubble tips" doesnt mean its not healthy or striving it just doesnt bubble like that. Some do only when they eat some do all the time but it makes one look alot different than the other.