dude you can house a tessa no prob... hands down i have one and he is completely happy
ps not all tessa's get that big there are 2 kinds one bigger one smaller
they will be in a 125 by themselves.....these guys are like puppies.... they let me open there mouthes and let me touch there teeth.... they also swim to the top to get pet plus they refuse to eat live food.....i had 2 damsel in there with them and they all just hung out...... the meanest eel in...
i have 3 morays in the same tank that get along really well together... i meen they barly leave each others side. i'll spost some pics once i get back to my house (im at the girlies house) one is a tessalata , a zebra, and a mexican dragon.