What to do?

[Katie]

What do you do when one of your discus decides that he wants to be a bully to the other 3? While they are not yet at the stage of all out war, one of my rt has decided that he is the boss and is starting to get scrappy with everyone.

[Merrilyn]

Katie, that's fairly normal for discus. They are cichlids after all, so a certain amount of pushing and shoving is to be expected. Things should settle down after the pecking order has been established.

Do you have a spare tank where you could put the bully for a while. If things get too bad, you may need to isolate him for about a month. When you return him to the tank, he will be the new kid on the block, and less inclined to agression.

[Proteus]

Ditto to what Merrilyn suggested, nothing to worry about unless things escalate.