ID please

"he" (unsure of gender at this point) is about 6-8 months old. 5-6 inches, blue/green in color. I received this guy when he was only an inch. Found out he was aggressive when he almost killed my 8'' Black Ghost Knife.

Right now he/she's in a 40 gallon with a BN Pleco. (I know the tank's too small, going to upgrade when possible. The tank's in a waiting area of a business.

Some people say it's a male flowerhorn, maybe female.

Thanks for the quick ID. I've been going around LFS to look for the same coloration, but no luck. Does this Flowerhorn have a name? Blue flowerhorn? lol

I find this one to be beautiful, but some of the customers say that it's not red, it's not really desired as much, therefore blue ones aren't as valuable/sold. (I got this guy as a gift)