Looks like the sera reptil Professional Carnivor food? Is this a floating product, if so that may present some issues since not all polys come to the surface to feed.
The food is designed for reptiles, especially when I found this description: “The optimal calcium vs. phosphorus ratio is the basis for healthy bone and shell growth.”
Ingredients
fish meal, corn starch, wheat gluten, wheat flour, brewers yeast, fish oil, gammarus, sea algae meal, green-lipped mussel meal, krill, garlic.
Guaranteed analysis
Min. Crude Protein 34.4%, Min. Crude Fat 4.9%, Max. Crude Fiber 6.9%, Max. Moisture 6.2%, Max. Crude Ash 8.5%, Min./Max. Calcium 1.6% / 2.8%, Min. Phosphorus 0.9%.
Additives
Vitamins and provitamins: Vit. A 16,800 IU/lb., Vit. D3 820 IU/lb., Vit. E (D, L-α-tocopheryl acetate) 54 IU/lb., Vit. B1 16 mg/lb., Vit. B2 41 mg/lb., Stabilized Vit. C (L-ascorbyl monophosphate) 250 mg/lb.
spurenelement: Fe (E1) 4.9 mg/lb., Cu (E4) 0.2 mg/lb., Mn (E5) 0.1 mg/lb., Zn (E6) 4.7 mg/lb.