One discus fish is sitting at one spot

[Danielzac86]

Hello all I've a red pigeon blood about 4/months old sitting in the one place all the time. He's eats well along with the others. feed tree times daily. There's 6 discus in my tank along with a about 12 rumy nose tetras. Lately he seems to be just sitting in the one place all the time but moves about when its feeding time. He may have got a knock about 2 weeks ago while cleaning the tank. One of my pieces of wood feel over causing them to dart across the tank. All parameters are spot on with no changes. Temp is at a constant 30°. Water changes 50% twice weekly. All others are doing well. Any ideas what could be up with him?

[peewee1]

Discus are territorial by nature. This one seems to have found its territory. I have three that act the same way. They have found a place in their tank where they are happy. In a breeding tank I have two others who swim around but at night they go to the same spot and hang there until morning.

[Danielzac86]

OK cheers for the reply I'll keep an eye on him anyway thanks