Discus bully

[Mashedpotatoes]

Introduced 4 discus into our new tank a week ago. The tank has been established for 10 weeks with lots of lovely happy tetras and cat fish. Tank is 190 litres.
The discus are only small roughly 3 inches. But one little bully boy won't leave the rest alone.
Any suggestions ?

[Pothole]

It won't even be enough for a sandwich so my suggestion is out already.

[Mashedpotatoes]

The thought crossed my mind what with it being fish n ship night n all.

[extraT]

Discus are territorial, and will assert dominance. Remove the bully boy only gives a promotion to "No. 2"

Increase hiding places, lots of plants and caves etc...

[Turn7]

I would look to increase the size of the group, to shaer the bullying around.

But then I keep Rift Cichlids....

[hipflask]

have kept discus, mostly wild but some domestic, for close to 30 plus years on and off and although they are one of the quietest, they are still cichlids so they will bicker for dominance over food, territory and potential partners, more obviously in smaller groups.
best way to keep them is either in bonded pairs or in larger groups.......larger groups do not stop cichlid behaviour, but it does share it out more

[dxbtiger]

Adding more would seem an obvious answer but not a great long term solution in a tank that small unless you have plans to upgrade or remove when/if a pair forms?

[Starfighter]

10 weeks running is not a lot of time for a tank to fully settle down with the certainty needed for Discus. Funny chemistry can messs with behaviour. What are the water parameters like? How established is the planting?

Pratical Fishkeeping has a good forum including a specific section on Discus. It may be woth a look.

http://forum.practicalfishkeeping.co.uk/forumdispl...