I have a 55 gallon angel tank. I have two koi angels. Their tank mates include a school of rummy-nose tetras, a school of cardinal tetras, and cory catfish. All these species live together in the Amazon. Angels are great community fish. They do like acidic, soft, warm(78-80) water so tankmates who also like those conditions workout best. Angels do not destroy plants so the plant selection depends on ur lighting and experience. I always include sword plants, they are the plant of choice for angels to lay their eggs. Any tall plant will be apreciated so that they can swim through it.