Yeah I read that aswell somewhere im not sure if i can buy a few as i only have a 190litre tank considering they grow to a foot. Any particular foods that they like doesnt seem to keen on normal flakes.
so you've not researched the recommended tank size or dietry requirements of this fish before buying it then?
I'd suggest you go and type oscar into google and get reading. you need a significantly bigger tank for starters and they need an appropriate diet, cichlid pellets are a good start but must eb supplemented with other foods.
a 190 litre tank is too small for a single oscar let alone multiple ones. I've read they need a minimum of 75g (300L), but that still seems a bit small. 180 gallons or more for multiple oscars..
What I think he means is he doesnt have a clue. If I am right I recon you have a trigon 190 corner tank which will be no good as you loose swimming space as these are deep rather than long. 1 oscar could live in a 55g but it would have to be bare but to be honest I wouldnt do this as these fish are very active a 75g is a good size for one oscar if you want to keep 2 oscars you really need a 125g tank.
if it's a trigon 190 it's definately not big enough, mine's in a trigon 350 which is big enough for him but because of the shape does not give as much swimming room as a standard 350l tank would. In the 350 my O will not accept any companios except a couple of bottom feeders, I couldn't put 2 O's in there so no chance you could if it is the trigon 190