Question about Flowerhorn Aggressiveness

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EricNguyen

Gambusia
MFK Member
Jan 22, 2014
232
1
18
Evanston IL
My Flowerhorn got really aggressive after I changed his gravel to sand? My only thought on it is that maybe I was moving his home around? He doesn't attack me but attack anything else that go inside that tank. Let me know your opinions on it. He is usually aggressive but I never seen him this aggressive.
 
Heres a picture of him, he is around 4.5 inches. He's too aggressive =_= instantly kill and attack anything that goes into his tank. I dont even think there is anything that can be his mate. I still dont understand why he got really super aggressive today.

PicsArt_1397262591562-1.jpg

PicsArt_1397262644136-1.jpg
 
probably sexual mature now, they take a 180 degree turn in attitude
 
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