We have a 90-gallon tank with a Fluval 404 filter system. Tank had a 16" common pleco (we think) that was about 10 yrs old, a 6-7" sailfin pleco who's a little more than a year old and a dozen or so platys and one juvenile molly.
Did approximately 30% water change on Monday (9/20). Husband cleaned the filter media with water and changed the charcoal and replaced the impeller and shaft and the top part of the filter mechanism that snaps in.
Monday evening, I went to feed the fish before bed and found the big pleco upside down. I touched him with a net and he seemed to bounce up to the top, but then he didn't suck onto the wall as he usually would. Husband took a look at him and pulled him out of the tank and we got no movement response at all. Unfortunately, he passed on.
The little sailfin seemed to be fine all week, but just this evening, I went past the tank and found him sitting at the top of the water, somewhat stuck onto the wall, still breathing, but not really moving. I reached in and gave him a touch and he didn't move.
We've got him out of that tank and in our other 55-gallon, which has another common pleco in it, but my husband has to hold him or he just floats. He's still breathing, but there's no movement.
Any suggestions or help would be appreciated!!
Did approximately 30% water change on Monday (9/20). Husband cleaned the filter media with water and changed the charcoal and replaced the impeller and shaft and the top part of the filter mechanism that snaps in.
Monday evening, I went to feed the fish before bed and found the big pleco upside down. I touched him with a net and he seemed to bounce up to the top, but then he didn't suck onto the wall as he usually would. Husband took a look at him and pulled him out of the tank and we got no movement response at all. Unfortunately, he passed on.
The little sailfin seemed to be fine all week, but just this evening, I went past the tank and found him sitting at the top of the water, somewhat stuck onto the wall, still breathing, but not really moving. I reached in and gave him a touch and he didn't move.
We've got him out of that tank and in our other 55-gallon, which has another common pleco in it, but my husband has to hold him or he just floats. He's still breathing, but there's no movement.
Any suggestions or help would be appreciated!!