pregnant oscar?

Question
I have two 4inch tiger oscars in my tank and ive had them for about 5 months and just recently, one of them goes up to the top where I have plants on the back glass and it just sits in there.  It looks week and tired almost.  It still breathes and if I make a noise up on the top of the tank, it will swim out and it will return to its normal self again with the other oscar.  What could this be?..it may be pregnant but how do I tell?  it will return to this spot every-so-often and then come out again..wat do you suggest it is?   thanks  

Answer
Hi Dominick,
 Sadly, your fish is not pregnant.  More likely it is being bothered by the other fishes in the tank.  The best thing you can do is make sure that there are lots of good hiding places in the tank so that if that fish feels the need to get a break, it has lots of places to go and hide for awhile.
-- Ron
  rcoleman@cichlidresearch.com
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