Thanks for the compliments everyone.
I believe the color is from direct sunlight. I don't use a light on the aquarium and when the sun shines into the aquarium onto it, it has the red color with a hint of green.
I feed depending on the appetite. Sometimes it's 3 times a week sometimes once. It will fast for weeks even months. The longest it ever went without eating was 2 months. It's fasting right now, I haven't fed it for 2 weeks now. When it was small it was everyday. But as it got bigger the appetite changed.
I do think it should be in a 4 foot wide aquarium at least. So, yes I think I will need to get a bigger aquarium.
My advice would be besides the obvious keeping the filters and aquarium clean would be to keep it alone. Don't cause any unnecessary stress. Another thing I don't do is big water changes.
This one is more docile than the other. The other one I had didn't even like you walking up to the aquarium or staring at it. It was constantly trying to get to you through the acrylic. This one doesn't seem to mind or show much aggression at all.
