Premium Pleco Wafers (Sometimes known as Chips) Supplied from fresh stocks in a resealable plastic bag - saves money! Also Available as an XL Wafer is about 4 times the size of our usual wafer! (see below) Product Profile: Our Wafers contain around 10 % wood for digestion, the optimal amount required for plecos. These wafers do not dissolve in water, they do not pollute the water and give shy fish the opportunity to feed in peace later. Contains beneficial spirulina and vegetable matter, the wafers, which sink in water, also contain wheatgerm. These Pleco Wafers are made in a special production process to retain maximum nutrients. The ingredients, size and structure are specially selected to meet the nutritional needs of plant-grazing armoured catfish (Plecostoums, .