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.
The rule of thumb is smaller ponds that are around two feet deep are perfect for Goldfish, but Koi need to be kept in deeper water and much larger ponds. However, the deeper a pond the better no matter what size it is.f it's a smallish pond, then Goldfish would be the better choice because Koi need a lot more space. In fact they should not be put in ponds that hold less than 1000 gallons of water and depth wise they need a minimum of three feet or preferably more in order to do well and thrive.