How secure is lid on container? We saw many complaints about breaking and spilling in shipping.

I had no issues, top was sealed. But i can see how this hard platic could break ezly. But the time it could take to recive would'nt compramize the freahness, i cellophane'ed the top and its lasted me over a year with no lack of smell or quality from my 300 gals of aquatic life, there still thriving quite well on it. So in short the food quality is great and long lasting, if ur mad because you have to clean up a box... grow up?

Do the pellets float?

The containers states it is floating fish food.

Do they make pellets larger size for koi over 18"?

Hello, our CrystalClear Platinum Fish food comes in a larger pellet size. I have provided a link below. https://www.amazon.com/CrystalClear-Food-Platinum-Large-Pellet/dp/B07F1TZ229/ref=sr_1_2_sspa?crid=25M9V68Z0TWI7&keywords=crystal+clear+platinum+koi+food&qid=1657891878&sprefix=crystal+clear+platinum%2Caps%2C82&sr=8-2-spons&psc=1&smid=A1EDR7O0GKJKM5&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExMlUxNFY2QktRTUFRJmVuY3J5cHRlZElkPUEwOTg1NjM5R0RIQUYwMUhPRDIxJmVuY3J5cHRlZEFkSWQ9QTA3NDU0NjM2VEVLRTMwNzNGRkgmd2lkZ2V0TmFtZT1zcF9hdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl

What is the ingredient list?

Ingredients: Dehulled Soybean Meal, Wheat, Wheat Middlings, Poultry By-Product Meal, Hydrolyzed Feather Meal, Fish Meal, Dehydrat- ed Alfalfa Meal, Soy Lecithin, Salt, Manganese Proteinate, Zinc Proteinate, Copper Proteinate, Calcium Iodate, Iron Proteinate, Cobalt Protein- ate, Calcium Carbonate, Sodium Selenite, Yeast Culture, Calcium Propionate (Preservative), Vita- min A Acetate, Vitamin D3 Supplement, dl-Alpha Tocopheryl Acetate (Vitamin E Supplement), Vitamin B12 Supplement, Riboflavin, Niacin, Calcium Pantothenate, Menadione Sodium Bisulfite Complex (source of Vitamin K Activity), Folic Acid, Thiamine Mononitrate, Pyridoxine Hydrochloride, Biotin, Choline Chloride, dl-Me- thionine, L-Ascorbyl-2- Polyphosphate (source of Vitamin C).