An inductively coupled plasma (ICP) for spectrometry is sustained in a torch that consists of three concentric tubes, usually made of quartz, although the inner tube (injector) can be sapphire if hydrofluoric acid is being used.n inductively coupled plasma (ICP) for spectrometry is sustained in a torch that consists of three concentric tubes, usually made of quartz, although the inner tube (injector) can be sapphire if hydrofluoric acid is being used.
We recommend the following GPK (gallons per Koi) rates based on their size: Small Koi (2 - 8): 100 - 150 gallons. Medium Koi(8 - 14): 250 - 300 gallons. Large Koi(14 - 24): 400 - 500 gallons. Jumbo Koi(24 - 36): 750 - 900 gallons. The GPK estimates are based on long term housing for the Koi. Indoor winter tanks can be small, but must accommodate enough room for the Koi to swim around comfortably.
They usually don't get more than 15 inches but the largest types can be around 36 inches. They normally live for about 30 years but its not unusual for them to reach 100 if well cared for. The oldest koi was 226 when it died in the 1970s it can take more than 10 years to get to full size. Basically if you raise them the cheap American way, in a backyard pond or a mini pool at a Chinese restaurant, you can expect to keep them for about 30 years and get foot long fish.