Hey guys, I bought a 40 gal breeder a while back and I have just began researching what I want in It. I have decided that I think the most interesting would be some type of predatory fish. The ones I have looked at are barracuda hujeta, a shoal of bucktooth tetras (between 10 and 15), needle nose gar, red fin wolf fish, leaf fish, and maybe datnoids. The problem I have been having is discrepancies on minimum tank req, everywhere has a different opinion and It left me pretty confused. So I came here. Which; if any, of these fish can fit in this tank and if any of you have an my other options please let me know! Thanks!!!