New Discus problem

[FarT_Rhin0]

I've kept 3 Discus in their own tank for about 4 months now, they all have been healthy and there has been no sign of sickness at all, I've been doing 30% water changes twice a week and everything seems to be normal...
Well everything seemed normal until a week ago when i added 2 more discus to the tank, they had been in the LFS for about 3 weeks before i bought them and looked healthy and happy and were eating well.
Ever since they entered their new tank they have been moving very little and eating even less, one of them seems to have turned a bit darker and their fins are not wide open like before and they lie on their sides near the surface of the water.
The other discus are still perfectly healthy.
Has anyone ever had this experience? or know what i should do?
should i add any kind of medicine to the water? or will waiting be the answer until they've "adjusted" to the new environment?

thanks for any input guys.

 

[cockroach]

raise the temp to like 32-33C, add a med for internal and external parasites ( dont know what you get where you are) and put lights on 30mins before feeding during feeding and for about 30mins after feeding. this works for me when one of mine look a bit under the weather.

i am no discus pro, but have had mine for like a year and a half

 

[FarT_Rhin0]

thanks so much for the help, will do, I'll add Doxycycline (as this is the one mainly used on discus over here).

 

[ziggy2]

Perfect example of when a QT tank is needed.

 

[2sybs]

You should always quarantine new fish for 4-6 weeks before adding to your existing tank. This is not just to protect the fish you already have.
Discus have immunities to different diseases and the new fish may not have the same immunities that your existing fish have.
With no QT you risk both sets of fish.
I would make sure your water params are good and wait before treating, find out what you are treating first.
May just be stress from the move.
Ray

 

[WyldFya]

Before you add any medicine, tell us your parameter, temp, setup, size of old discus, size of new discus, and what you are feeding.

 

[Yanbbrox]

Perfect example of when a QT tank is needed.

Agreed, not alway practical but discus have fairly weak immune systems, full treatment internal and external needed, qt them and treat because some discus do not react well to certain treatments and it'd be a shame to risk the whole tank