That's what I thought at first, the offenders have all been fished out and treated. The display tank has also been salt and temperature treated, and it's running an UV light. This has been going on for almost a year, none of the offending fish shows any signs of stress or diease other than the floating poo sticks as you called it. All newily introduced larger plecos display the same anti-gravity poo the within days they were introduced into the tank.
The record so far is a foot long floating poo string from the 10~11" L190 .....
The record so far is a foot long floating poo string from the 10~11" L190 .....