In my 500 gallon tank I have two 30 inch pacu's. Today I noticed that on both fish their bottom lip was swollen and like sticking out? Very strange. I did do a watch change yesterday and all levels seem correct. They did destroy one of my air stones recently.
Are they just low on oxygen? I have never seen anything like this.
thanks.
Are they just low on oxygen? I have never seen anything like this.
thanks.