These four were purchased from Shark Aquarium well over a year ago. Erythrinus erythrinus are also called - Rainbow Wolf Fish, Hi-Fin Wolf Fish, and Red Wolf Fish
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The ones that you have are Erythrinus Erythrinus Sp. Peru.
Sp. Peru doesn't have red/orange on the high fin and only has marking on the lower/belly area of the fish.
This is the one I have which is known as Erythrinus Erythrinus (known as red wolf fish/rainbow wolf fish). for the names red wolf fish and rainbow wolf fish, they are both the same. these wolves have red at the middle of the body and a red marking on the high fin, giving it the name "red high fin".
this is when i first got him. he was the dominant male from his batch but was a bit injured and developed ich from stress


this is a pic of him now (sorry for the bad quality). He developed a really nice blue on his lower jaw x)









