Plecos often develop a taste for plants as they grow older. Alternatively, they often develop the bad habit of rasping on the same leaves they like to sit on for algae. Eventually this damages the leaf itself. This usually only occurs during lights out so people seldom see their plecos actually hurting the plants.
Photos of your plants would help determine if it is pleco damage.
I'm always looking for more photos of plant problems, so feel free to post some of your plants and I can add them to the database with your permission.
Photos of your plants would help determine if it is pleco damage.
Go to www.DeficiencyFinder.com then scroll down to the Non-Deficiencies section and look for the 4 or 5 entries titled "Pleco Damage in...(plant name)" and you should be able to get a good idea of what pleco damage looks like.
I'm always looking for more photos of plant problems, so feel free to post some of your plants and I can add them to the database with your permission.
No, the damaged leaves cannot heal themselves, but all new leaves will be damage free once the plecos are gone.
I'd continue dosing fertilizers regularly. Deficiencies often crop up if nutrients aren't dosed regularly. You'd have to post photos of the damage you think is not pleco related to say for sure if you have a deficiency or not.