Mine was a solo Jag and well... Story Time. My uncle went into my room to check out my fish and he placed his hand in front of the tank and nothing. He was like it's not mean my Red Devil use to chase my hand. I told him it doesn't go for hands it goes for your face. He placed his hand in front again I was like dude put your face to the glass so he did but nothing it just looked at him. I then told him now back up slowly so he did and it began to charge. When my uncle finally decided to stop playing this with him he stood up at normal speed and BOOM he rammed the glass so dang hard the top water was splashing back and forth. He was like Oh snap that is sweet. Well next he calls his now ex girlfriend over to see it she was like oh it's ok I guess he was like babe this thing is mean put your face to the tank. She put her hand we both said it won't go for your hand. She was like if it was mean it would. We finally convinced her to put her face there and well I guess he was still amp'd up from my uncle cause when she backed it hit the glass even harder. He was closer to the surface and with his tail flicks and speed it caused the water splash out from the back of the tank where the filter was. My wall was dripping with water. She jumped and walked out of my room all mad. Me and my uncle laughed. But yea. I miss my Jag.