Helps to keep them calm and acting normal. Cudas are same as well. Groups of 4 or more will make them not stress. Plus always looked better with 3-4 in the upper zone area.
Ok cool thank you. I am interested in them for sure. Im going to do some more reading. I would really like to have 3 different types of fish in the tank. Would that be possible with any of these? I have kept tanks before, but never larger aggressive fish like these so Im not really sure how many overstocking would be. I like the cudas and the hujeta, but I also like the scom, bush fish, and bichir. Haha so I guess what could I do, if anything, to have 3 species in the tank?