My friend had an ornate that was over 2 feet, you could not even get your hand around his body. He also had a royal pleco that was over 18 inches and a few 12 inch clown loaches. They were the biggest fish of that species that I had ever seen.
I have a 4'x2'x2' for my bichirs (ornate, del, sen) electric blue lobster, and spiny eel and I am growing up an albino sen, tire track eel, and peacock eel to put in there eventually (fish size permitting). I have pretty much conceded putting anything that swims in there because they grab onto anything that swims around. Even if they can't fit it in their mouths. I had a gourami in there that was about 6 inches long (when my bichirs were only about 7 inches long) and the sen literally grabbed him by his anal fin area and shook him until he died. I saw him do it too, and I chased him with a net but he would not let go.
