I'm into discus as much as the other 2. It's one of the rare times I will have a totally free tank to be able to put in it what I want. So I want to have the most varied info possible.
In terms of the Oscar and arowana, these should be fish I have for the next 10 years right? I want a healthy fish that won't make me go through this again soon!
For the oscars, you said to get many young ones and hope some pair up, but then as adult I could only keep that pair in the 200 right, getting rid of the others?
For the arowana, they are all mostly imported from Asia right? Do they then require a lot more maintenance and water changes? Will the 200 be enough as it ages and grows?
Which have most personality for those of you who have had them all?
I am used to koi fish and goldfish that are both very puppy-dog like. I do like a smart fish also. That's what is making me doubt discus, they look a bit 'empty eyed' to me!