Oscar my blue gourami

[PenguinsMakinLuv]

When I had first got Oscar, he had about 6 other fish with him in the tank, and they all died except him, I waited a while to get more to make sure nothing was wrong with the water, so when I got more and put them in the tank, Oscar killed them all! He likes to chase them around the tank and bite at them. I have not been able to put any other fish in the tank with him, not even his own kind, I've had him for about 3 years now, I want to get more fish, but I've spent about $20 on fish that all went down the drain cause of Oscar, I just don't know what to do, the tank is so boring, all he does is hide behind the filter. Any suggestions?

[Hyper-dimension]

You need to provide more info. How big is the fish? What size tank? What kind of fish have you been trying to house with him? This behavior is pretty typical of larger gouramis; you'll have to house him with fish larger than he is(dependent on the size of the tank), and even then take care in choosing his tankmates. If this isn't possible, you should accept the nature of the animal you have decided to care for. Also, what blue gourami is he specifically? There are several gouramis that are 'blue'.

Most importantly, how big is your tank?

[PenguinsMakinLuv]

He looks exactly like this:
http://img134.imageshack.us/my.php?image=bluegouramibl0.jpg
He's about 2 inches long, and the tank is a 20 gallon. I've put other blue gourami's in the tank with him, some bigger some smaller, but he does the samething.

:ike:

[AngryOnion]

Get a female gourami a good pet shop can tell the difference.
I used to know how to tell them apart but I have been out of the fresh water thing for awhile now.
He will start to make a bubble nest to put eggs into after he has sex with her:O

[PenguinsMakinLuv]

well right now he's the only one in the tank cause I can't put anyother fish in there with him. I looked up how to tell them apart, he's a male.