My pleco love zucchini, algae waifers, romaine lettuce, and fish food. They love drift wood as well. Chewing on it aids in their digestion. I drop the waifers and sink the veggies and walk away. Everything eventually is eaten. My pleco would eat nonstop if I fed it. It especially loves freeze dried blood worms (go figure). I literally slice a zucchini in half, hollow out the inside of a half, pack it full of blood worms, and stab it on the weight and sink it. The fish devours it in seconds. As for veggies, what doesn't get ate I remove from the tank before they become seriously waterlogged and nasty. Usually a day max. One concern though is having 2 in 1 tank. They tend to be terriorial. As they grow you might have some aggression between the two. Just something to keep an eye out for. Other than that experiment with foods. They love dark green veggies and squash i.e. zucchini, cucumbers, romaine lettuce, snow peas, even fruit. They're a tough fish and can handle quite a bit. I've had my pleco going on 12 years now. It's one fat cat and about 20-21 inches now.
