I just bought a rubber lip pleco. (my first pleco) Do they actually have the ability to bite and or eat a piece of uncooked zucchini or cucumber or leafy vegetable for that matter. It appears that their mouth is sucker like. I have read to just put the vegetable in raw and also to cook it a little. I put in a piece of zucchini last night and he didn't touch it for 8 hours and when I removed it, it was still pretty firm. Did he not eat because he couldn't or because he wasn't hungry? I bought some algae wafers and see if he is more interested in those. He is in a quarantine tank with no algae. 
