I just came across some one wanting to give away 3 hermies on craigslist for free. I requested more info on the size of them and current conditions. I have a 15gal tank with two small hermies, i think 3 more will do fine. I do not have an ISO tank, but can come up with something quick if need be. I have extra EE and can get a 10 gal quickly and I have extra bowls and stuff. I have been thinking of getting a few more, not now, but i would hate for someone to get them that does not know what to do with them. What do you think?