Lace or Pearl Gourami - same fish just 2 common names Nice fish gets to about 5 inches - reasonably peaceful.
Probs best to learn your fish before you buy in the future though, this is a common fish really and if you had searched about Gouramis you would have known - Im not saying dont ask about fish and I know exactly how impulsive some fish purchases are at times we all do it but research is often key to success
Beautiful fish, peaceful for the most part but males can occasionally be super aggressive, this is very rare though. They usually grow around 5-6 inches, prefer a large tank with slow and calm companions that will not bother them, they are vulnerable to nipping due to long finnage so should never be kept with fish that have the potential for aggression.