Its not a Red Texas, its a kamfa. Check out the thread called Official Petsmart Kamfa Thread. Me and 7 others on the forum have this same kind of fish you got.
Thought I would share my fish and since Chris tells me its a Kamfa I would have to agree... I have a large 7 inch ZZ Flowerhorn but didn't know this was a flowerhorn as well. Thought it was a Syn hybrid but don't know a lot about Flowerhorns yet so I didn't know it was kamfa. Bought as a red texas... he or she's about 3 1/2 inches. Not what I would call low grade either like some claim...fast little sucker won't quit moving for a good pic!