Sera Crab Loops is the powerful staple food of the new shrimp range by sera. The specialty: The nutrient profile according to the natural requirements and the VIP formula for constant premium quality support healthy development with regular shedding activity. Furthermore, continuously feeding the sera novelties also enhances fertility, vitality and brilliant coloration of the animals. The loops of sera crabs natural allow feeding shrimps and crayfish together. The sinking and stable loops prevent unnecessary water pollution inside the mostly small biotope aquariums, as they are optimally balanced according to the nutritional habits of the animals and thus are easy to digest. The high quality ingredients include marine algae rich in iodine, stinging nettle leaves, additions of willow bark and alder cones rich in fiber, as well as a large amount of Spirulina algae. The contents in minerals and omega fatty acids meet the requirements and are another bonus feature.