Absolutely, I understand that zucchini has more calories and is probably a better choice to feed, my point was that there is nothing wrong with feeding cucumber.

Just registered here and I'll be honest, I probably don't know a thing about plecos other than the generic. I've come across a little debate about the veggies plecos should be eating and one user said that cucumber has almost no nutritional value for plecos and that's why she will feed zucchini ...