Well, thanks for the suggestions. But I'm still confused. Why would the plecos now be going after the sagitaria - which has been in the tank with them for years - when there is still plenty of algae. The same types of algae still are in the tank that the plecos previously preferred over any of the ...

I've had 2 plecos for many years in a 75 gal planted tank. One or both has recently taken to eating some plants they previously didn't bother. Not sure of their genus / species, but they were sold as "clown plecos, and they maxed out at about 3" to 3.25". Could be Peckoltia sp or Panaque sp. Both ...