Dennerle Pleco Menu Herbivore is a basic food for catfish that eat algae and plants, especially plecos such as Ancistrus, Peckoltia, Glyptoperichthys, Baryancistrus and Hypancistrus. Containing natural foliage (15% fibre, just like in nature, and as a high-quality source of lignin), vitamin-rich vegetables and algae (20%), crustaceans, insect larvae and fly larvae (10% total). Catfish will happily scrape away at the discs, which are around 15 mm in diameter, just as they would eat in their natural habitat.Dennerle is taking a brand new approach in feeding aquarium fish. Thats why Dennerle are committed to not adding any fish meal at all to their ornamental fish food during the manufacturing process! Fish meal and other cheap fillers are often added to industrially produced ornamental fish food, the recipes for which are frequently taken from industrial fish farming. Ist aim is a purely economic one: fast growth using minimal materials. Balanced nutrition tends to play a lesser role. I