After having used this ICP test a couple of times, the jury is still out on this one. Out of the 31 elements and nutrients tested for, 15 are coming back with a --- reading, which I take as zero. I do small dosing every day and add some trace element additives daily. The trace elements cannot be zero for 13 of the minor elements, phosphorus and phosphates. Who has consistently zero phosphates? At this point, I don't think the results can be trusted. Time to try something else.

I sent my retest out on Monday, the 1st. Tracking showed it got there on the 8th. They emailed me today that they just received the test and that it will be another 2-3 business days until I get the results. So now the water is 2 weeks old, how accurate can it be after that long in limbo?

Results seem good- But their turn around time isn't the fasted. USPS says it was delivered on a Monday yet the lab says they didn't get it until Thursday delaying the testing even longer.

While ICP testing itself is a controversial topic, if you've decided it has value, then this is the kit to get! Make sure you have your ICP to California by Monday as they seem to ship to Germany on Tuesdays. This will get you the quickest turnaround. Been using these for almost monthly for the last 18 months and get very consistent results every time.

Really like the variety of elements they test. They also provide recommendations for what is a concern or not to "fix" and how much to dose based on your tank volume. You can also buy the specific element to supplement anything you are deficient in. Turn around time on the Test Results is relatively swift <10 days in my experience.