I know I haven't been on here in forever, but I've got a disaster on hand.
I was cleaning my 15 gallon which has 3 fantail pearlscale goldfish (before I get any back-talk about this, I do water changes each week and monitor the water stats; there's never any ammonia, nitrite, or nitrate and they have plenty of swimming room)
and one of them got a little curious and was sucked head-first into the tubing. He quickly removed his head and swam off. I noticed one of his eyes are bleeding a little but not much; it's more bruised. The eye is severely swollen at this point. He's obviously distressed; he's wobbling around but not as if he's about to keel over.
Any advice on what to do is appreciated! I haven't finished changing the water either; should I finish this up?