Looks like a type of Malawi and Tanganyikan cichlid. I can't give you a exact name, but you can go look up water conditions for Malawi or Tanganyikan cichlid.
In brief, they need high pH and high GH. Check out the fish shops for products that create ideal water conditions for them. Their homes are usually rock piles with sandy bottoms. Some species are territorial.
Hopefully some comes along and names them for you... then you can get exact info.
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