Quote:
	
	
		| 
					Originally Posted by reefgirl189  A one time tester for all parameters. Drop a cup of aquarium water in a computer and have the readout give your all your parameters with great accuracy. I find the test kits vary too much from brand to brand and I'd like to have a machine that I can calibrate to a primary standard on a bi-yearly basis. | 
	
 They have those, it's called a mass spectrophotometer...only they cost approx $500,000 for a cheap one 
