Hey my o has been getting more aggressive towards the pleco. There was never a problem before. Is there something im missing or what?? Nothings been out of the ordinary. Been feeding worms instead of goldfish for a change?? But that shouldnt have anything to do with it?? Right??

how old and how big is your o. maturing oscar usually
test all its tankmate/s and try to muscle up to show
who is the boss.

i fear you have made your O attack the plecs by feeding him goldfish for a long period of time causing hs aggression levels to rise towards other fish as he sees them as food now !!!!!!!!! stop feeding goldfish there is no nutrition in them and they just make yur O nasty to other fish .....dumb when you think about it realy:) just my opinion tho

PAUL wrote:



Hes?? 2 1/2 bout?? hes only bout 7 inch. But the previous owner
had him in a hospital tank for too long. He was starving in the
big tank. Now i got him and put him in a 150 gal. tank. im looking
for a bigger one again.

what you should do is to start feeding big o fish again to sort of take his mind of the pleco or it could be if the tank is too small because oscar need to ram and be free.