I have a 45 gallon tank and i want to know if my fishes will be good with each other?please help me out?

Yes those fish will be okay with each other because their all except for the red tailed black shark peaceful with each other. Don't worry about the red tailed black shark he won't bother tetras or any of the others because he is only aggressive towards his own kind, mostly. There are some other fish you can get and I would reccomend a pair of heyhole cichlids or 2 females and 1 male of the bolivian ram cichlids. The reason I mentioned these was because I've had these for 3 an a half years now and their very peaceful because their very peaceful cichlids. I hope I helped you with your question, and Good Luck!!!