My advice when buying "algae" wafers or pellets, is to make sure that the main components of the food, are algae based, as in aquatic plant matter.
A few examples of alage wafers below. Which one appears to be more along the lines of what a fish in the wild would consume?
this?
INGREDIENTS
Fish meal, wheat flour, wheat germ meal, cassava starch, dried bakery product, dried seaweed meal, alfalfa nutrient concentrate dehydrated, dehydrated alfalfa meal, brewers dried yeast, soybean meal, fish oil, krill meal, spirulina, garlic, DL-methionine, chlorella, astaxanthin, choline chloride, vitamin E supplement, L-ascorbyl-2-polyphosphate (stabilized vitamin C), inositol, d-calcium pantothenate, riboflavin, vitamin A supplement, thiamine mononitrate, pyridoxine hydrochloride, niacin, folic acid, vitamin D3 supplement, biotin, disodium phosphate, ferrous sulfate, magnesium sulfate, zinc sulfate, manganese sulfate, copper sulfate, calcium iodate.
this?
Ingredients:
Wheat Germ Meal, Feeding Oat Meal, Corn Starch, Dehulled Soybean Meal, Cellulose, Potato Protein, Dried Yeast, Wheat Gluten, Algae Meal, Soybean Oil, Monobasic Calcium Phosphate, Guar Gum, Yeast Extract, Ascorbic Acid (Source Of Vitamin C), Inositol, Niacin, L-Ascorbyl-2-Polyphosphate, A-Tocopherol-Acetate (Source Of Vitamin E), D-Calcium Pantothenate, Riboflavin-5-Phosphate (Source Of Vitamin B12), Thiamine Mononitrate (Source Of Vitamin B1), Pyridoxine Hydrochloride (Source Of Vitamin B6), Vitamin A Palmitate (Source Of Vitamin A), Biotin, Cyanocobalamin (Source Of Vitamin B12), Cholecalciferol (Source Of Vitamin D3), Manganese Sulfate Monohydrate, Zinc Sulfate Monohydrate, Ferrous Sulfate Monohydrate, Cobalt Nitrate Hexahydrate. Color Includes: Blue #2 Lake, Yellow #5 Lake, Yellow #6 Lake. Ethoxyquin
or this?