i have a 9 in midas cichlid in the 55 glannon. i dont want the lima t get picked on

Should i keep a Lima Shovelnose with checkerboard barbs and neon tetras. I dont want the little fish to be eaten but i want to get my Lima out of the 10 gallon and hopefully big enough to be able to go in a 55 gallon.

I am keeping a Lima Shovelnose and Eclipse Catfish in a 10 gallon for about a month then im going to move them to a 29 and then finally to a 55. What should i feed them? Are they Compatable together? I also have a Midas Cichlid (Red Devil) in the 55. He is about 8-9 inches. Will this be okay for ...