new 120 litre tank

how many gallons is this?? the discus really needs a couple of buds.

well you didnt have to go all capitilized on me! anyway your discus is going to be stressed without a school.

I have to agree. I think most people experienced with discus will attest to the fact that they pretty much need a group.

i would do a min of atleast 55 with 75 being alot better, with a group of 5 or 7 ( dont think they like even number of schools? may be wrong though. ) at very min i would do is a 55 though. they do need a school in the long run.

I really dig the tank/setup. I just have to agree with the above comments. Eventhough he is living and eating, it doesn't mean he isn't stressed. And his color shows it.

I'm keeping one discus currently in my 55 gallon setup. He has some friends in there like an angel fish and corys, but no other Discus. While I agree that it is good keep them in schools of 5 or more I do think it's possible to keep a single discus if done right. Mine is a year old now growing very very well has beautiful color and absolutely no signs of stunting or stress and I have many many pictures to prove this to be so. Now with that said... I think it's more important to worry about other things which might cause stress to a discus. Such as the fact that your 40 gallon tanks look pretty short... discus need tall tank more then they need wide tanks just like angels. Also not sure if it's your picture but your water looks pretty murky and cloudy... with your tank being the size it is, you should be doing like 2-3 water changes a week to keep it clean enough for your discus to stay healthy. Also you have alot of other fish in there so your bio load is pretty big for a tank that size. Even if you consider the 10g per discus rule there are things too worry about this tank not just the fact that it's by itself. Lots of people buy discus with out even having the proper means to raising them or housing them in a proper tank of the proper size.

Check out my thread for my 55 gallon with the discus in it. The thread also has pictures of my current 40 gallon grow out tank... which it the proper way to raise discus before putting them into a planted tank...

http://www.aquariacentral.com/forums/showthread.php?255230-aXio-s-55-Gallon

livebearerfreak said:

i would do a min of atleast 55 with 75 being alot better, with a group of 5 or 7 ( dont think they like even number of schools? may be wrong though. ) at very min i would do is a 55 though. they do need a school in the long run.

Click to expand...

Keeping an even number of discus is perfectly fine.

yeah last i checked fish couldn't count haha. i joke i joke.