Healthy treats for fish
The same principle applies to treats as to any other food for aquarium creatures: it is important to avoid causing any problems or spreading any illnesses through feeding. When using frozen foods, for example, the cold chain must always be maintained, otherwise the food will spoil. Natural foods (e.g. live food that you have caught yourself or natural food that has not been adequately checked) may be contaminated with pathogens that are harmful to the creatures in your aquarium. If these pathogens end up in your aquarium, you may introduce a fish disease as a result. It goes without saying that natural, certified-quality foods should always be free from pesticides and heavy metals. All in all, it is crucial for your fish treats to be of impeccable quality, as this helps to keep all of the creatures in your aquarium healthy.