Tested my Ca for fun, 450ppm. I can live with that..

Show off.

Edit: I'm picking up the Elos test after work . . . AND the hanna checker. This is going to drive me nuts.

i expected a value near there, i run a good sized Ca Reactor. And the Reefers Best salt is about 420 out of the box.

That's what I consider about perfect.

I'm going to get two tests that agree . . . and if I don't I'm going to Denny's to compare with his test (which is Elos).

It's a bit high, I'd rather it was 420ish, but it's acceptable.

This may not belong in Shelley's post, but ...
And, this is a hella long post :wink:

I currently use IO Sea Salt, and batch # 11257 is being tested here

OK, I thoroughly hate testing :twised:

I just finished 3-1/2 hours of water testing my NSW, DT and RO
I don't want to think about how much test kit money I have just thrown away .....
Plus, after dinner, I still have to store some of this water for J&L to test and do a DT WC

Here's my testing info;

Each time I fouled a test with a partial drop I started over
I lost about 2 Alk, 7 Ca and 3 Mg tests, give or take ...
Plus, each time I got a reading that was outside the norm, I tested again

With the Elos kits I went a step farther than they suggest and rinsed the syringes with test water before taking samples

When adding the powder in the Elos kits, they state it's OK if not all the powder dissolves
With this in mind, I tested once with only shaking the vial after adding the powder, and tested again with the cap on the vial and shook vigorously
There was no measured difference between using/not using the vial cap
To confirm this, I tested the Ca in my NSW 5 times and all readings came in within 10ppt of each other

For reference, I bought both the Seachem Marine pH/Alk and the Seachem Reef Status Ca kits
I will never buy these again and I'm going to return these 2 kits as they are tedious and, IMO, unreliable
I don't want to turn this into a review, but I will say that I use Seachem NH3, NO2 and NO3 and find them easy and reliable
For Alk, Ca and Mg I will stick with Elos

Brad, it's funny you brought this up when you did as I did some more reading last night and checked my refractometer before bedtime;
After 45 secs it gave me 35ppt with the solution

Today, after talking with Jeff @ J&L, I floated the solution in the DT for 1/2hr and again my refractometer is 35ppt with the cal solution

It's safe to assume my tests are @ 1.025, although I only use a BRS ATO refractometer. But, it has been checked against J&L's current one, so it has to be 'close enough'

On to the test results :smile:

19g of NSW @ 79F and 1.025 Sg
Elos;
- Alk 11
- Ca 490, 500, 500
- Mg 1300
Seachem;
- Alk 11
- Ca 475, 475

DT water @ 79F and 1.025 Sg
Elos;
- Alk 7
- Ca 430, 440, 430
- Mg 1550, 1550

RO water @ 72F
Elos; big 3 all test to Zero

You will note my DT water is hi in Mg. That is due to me dosing Mg to eradicate algae
I am still waiting for the Mg to drop
After the effects of my last round of dosing Mg I will not be doing it again anytime soon as it threw the other 2 out of whack

I am now only performing WCs to keep my tank in check and have dosed Alk ONCE ONLY to bring it back to above 7

I feel this info is enough to prove my Instant Ocean Sea Salt is OUT OF WHACK
Go ahead and call me crazy now, will ya :twised:

Getting back to Shelley's original post ....

Check your source water and NSW as well
Do a big WC ( as Brad suggested ), test, test again, and just watch what happens

It took me over a month for my params to come back in to check after I dosed Mg :rolleyes:

I'm taking 2 cups of my newest NSW and 2 cups of raw salt to J&L tomorrow for testing

I'm starting to think there's something wrong with your salt :razz:

My LFS guy was off today, so I wasn't able to get any to test.

At least we're now talking about my Salt being off instead of it being either;

1 - Greg's kits are out of whack
2 - Greg's out of whack

:mrgreen:

Although, I'll admit I'm out of whack sometimes :silly:

As I said, I'll report my findings

Very interesting, Greg.

While the Seachem Reef Status tests are a production (you should see the magnesium test :rolleyes:), I'm curious as to why you feel the Reef Status calcium test is unreliable. It gave you the exact same results twice. Did you do additional tests that did not return similar values? Or, did you foul a number of the test?

I'm impressed with your dedication to this! And yes, your salt is whacked (for IO). It is testing much more like Reef Crystals. And, in that case, I'm wondering why the heck I'm paying for Reef Crystals when the plain IO is returning results like that.

I wasn't able to pick up the Hanna Checker and the Elos Calcium test last night, as I narrowly missed Dave @ Concept. I'll be picking those up tonight. And, I will endeavour to get some numbers that corroborate. Once I have numbers I trust, I'll have a better idea how to approach this.

Did another 10% wc last night . . . and my euphyllia are ****ed! I'll be spying on them with the ip cam today. They all shrunk right up into their skeletons.