Mazuri Koi Platinum Ogata, A Floating Diet(7.9mm) Designed For Koi And Other Ornamental Fish In Ponds, Tanks, And Aquariums, Formulated To Provide Complete Nutrition In One Product. 13.5lbs(6.1kg) Mazuri Ogata is a floating diet and suitable for all koi over twelve inches long- Extruded nugget size: 7.9mm(5/16" x 5/16") length Multiple Sources Of Pigmentation- A Blend Of Carotenoids Include B-Carotene, Spirulina, Canthaxanthin, Astaxanthin, Tagetes(Aztec Marigold) Are In This Formulation. The Blend Can Be Bennificial Because Fish Sometimes Metabolize Carotenoids Before Depositing Them To Natural Receptors In The Skin, In A Species Dependent Way. Proper Dietary Protein To Energy Ratio In Mazuri Koi Diets Helps Prevent Excessive Fat Deposition In The Liver, Which Can Decrease The Health And Market Quality Of The Fish. Extruded Pellets Have The Best Digestibility Of The 3 Pellet Manufacturing Techniques(Extruded, Expanded, Compressed), The Best Feed Conversion Rates, And Use Carbohydrates(starch) As Binders So "Nutritionally Blank" Ingredients Are Not Used To Bind The Pellet. Better Feed Conversions And Reduction In Total Biological Load In The Water Column Is The Result. This Includes 13.5 Pounds Of Feed Packaged In A FDA Food Grade 3.5 Gallon High-Density Polyethylene(HDPE) Bucket, A Measurex 236.58cc (8 oz/1 cup) Measuring Scoop, And A Lid Opener.