hi everyone im after a bit of advice as my oscar has suddenly changed behaviour and im worried its for the worst!i have done everything as i always done maintenance wise i.e regular water changes.i have tested for ph, ammonia, nitrate and nitrite and are all fine.he has taken to moping about the bottom of the tank and seems to be gasping albeit slowly.i know oscars sometime sulk but he doesnt come to the front of the tank like he used to and beg.whats wrong????the oscar is about 9" and has a 61 gallon tank all to himself.

you got plenty of oxygen goin into the tank ie bubbles from filter

i have a 6" air stone that is set on the high setting which generates a lot of bubbles but like iv said nothing has changed.about 2 weeks ago i ran a course of octozin to help heal a slighty damaged fin and my wife has just informed me that when she dropped the tablets in the oscar actually ate a couple!silly question but surely this wont have helped!thanks for your reply.

not sure mate but just to let you know mine mope about around once a week cos there just plain lazy maybe he wants to relax
im sure ofl will be able to tell you or one of the other helpfull ppl in here whom know more than me

hope all is well for you soon good luck

hi there i know you say yr water parameters is perfect but could you please post them so we can hv a beter understanding on what is happening.

moping on the bottom could be alot of things like indigestion to parasites to being lazy.

no probs, nitrate, nitrite and ammonia are all running at zero and the ph is 6.5. i even got the wife to do a seperate test in case i was doing something wrong.

my oscar is still small (4.8"), he doesn't sulk that much. but i think bigger oscars sulk more often, they r moody!