Are my ICP test results inconclusive?

[niQo]

I got my ICP test results a little while back and while I was somewhat hoping they would point to an obvious issue, I do not think this is the case. However, I would love for someone with more experience in these matters to have a look at my results and propose some ways forward, whether this is water chemistry related or perhaps I need to look elsewhere.

Quick summary (ICP test results attached as well)
- Low Fluorid (0.58 mg/L)
- Very High Silicon (739.4 ug/L)
- Low Iodine (7.82 ug/L)
- Low Molybdenum (3.07 ug/L)
- Undetectable Manganese
- Low Vanadium (0.43 ug/L)

Main tank issue:
- 3 acan frags and 1 acan colony all died around the same time
- In the last year 3 LPS (wall hammer, Torch, branching hammer) all died
- There is a possibility of too low par, although especially the acans have done okay for months/year. Yesterday I lowered my lights a few inches and I am hoping to save up for other lights in the next few months.

Thanks and I'd be happy to provide more info.

 

[Randy Holmes-Farley Verified Community Expert]

I doubt any of those killed corals, but, of course, when something is undetectable (such as the manganese) we have no idea how much is actually there.

i think a different explanation is most likely, but adding a trace element supplement might be useful.

Based on your report, I'd raise salinity, which will also raise potassium, which is low.