Arc Flash Boundary (ARC) - is the distance at which an electrical arc can flash. outward, which may endanger employees working on electrical equipment. Flash Protection Boundary (FPB) - theJcalculated safe working distance from. electrical equipment which would not expose the employee to the hazards.
One advantage of freeze drying is that food preserved in this method can last longer than food preserved in virtually any other way. Freeze dried foods, if stored properly, can last for years, even decades, and taste exactly as they did the day they were bought fresh.
Freeze-Dried Foods. Freeze-dried foods are a great option for your fish. They have many of the same benefits of live food, but are much more convenient and carry no risk of transmitting diseases. You can feed them to your tetras or guppies as a staple food (instead of flake foods), though they do cost a bit more.