How many fish in a 55 gallon?

I have seen a few different posts, saying 1 inch of fish for every 10 gallons, or two fish per 10 gallons, As of now i have: My tank is freshwater community, with relatively small fish

2- angelfish (4")
3-neon tetra (looking to get 3 more)
4-Red glow zebras (about 1" big)
5-Cory Catfish
5-Painted Tetras (about 2")
3 Black mollies
2- orange fish (dont know their names, about (2")
there is not set rule, and most of them are garbage and should be treated as such anyway.

dont add any more neons, as they are just going to get eaten by the angels. the zebra danios are probably gonig to be eaten also.

your painted tetras are dyed, but they are probably the blue or pink albino black skirt tetras that are fed dye laced foods, whcih is not as harmful but it will still shroten the life span of the fish. dont get any more of them.

your mollies amy start to nip at the angelfish if there are not enough females in the tank. are your mollies all male, 1 male 2 females, 2 males 1 female?
 
yup, serpae tetras indeed, be cautious with them and the angels however, in large schools they tend to be sommewhat agressive and have fin nipping tendancys, but you should probably be fine.


Maybe I am misreading but having a school (I assume the larger the better but I'm unsure) of serpaes would decrease the tendency to fin nip, right? I have 6 in my community tank and they keep to themselves, chasing one another. Granted I don't really have any long finned fish in there with them but I guess what I'm trying to clarify is, more numbers would be better, they will direct their attention within the school rather than other tankmates.
 
actually all of my neons have come out of a tank with angelfish, and i have not had any problems of the angels eating them, my black mollies are all females and have not gone after any other fish in the tank, i did however have a male black molly who went after my female betta so i gave the betta to my friend, but soon after my male mollie got stuck to the filter overnight and died. as far as the fish in the tank they are all getting along just fine, with the exception that my angel chases the female angel around sometimes but i guess its normal
 
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