Magnesion

i think i have been interpeting the reading wrong.

yes; i start with a full syring, and add solution to the color change,so i use a total of 8ml of reagent C

 

ok i have to go get some CA and bake soda today

 

i am going to list all my par later today, so i can get some feed back as to where i need the work

 

Well, your Mag is still fine at 1600 ppm.
I think you should re-read the instructions and re-test your calcuim and post what you test at.
If your calcium is still under 400, that's not really a problem if you have fish only and no coral. If you want to keep coral, get it up to ~440ppm.
Get your dKH up to ~12 dKH. If you add Ca without paying attention to your alk, your alk will drop and your pH will become unstable at much lower alk levels.

 

retest my
CA = i used .7ml that make my CA about 330, i would like it to be up around the 440
Alk = 1.9
i need to get a dkh kit

 

You can convert alk to dKH.
But your Alk numbers don't seem right at all, does your kit read Alk in terms of meq/L?
Typically, 1 °dKH = 17.9 ppm KH
dKH/2.8 = alkalinity in meq/L

so
1.9 x 2.8 = 5.32 dKH. You seriously need to add baking soda or buffer to your tank water ASAP to get your Alk back up to at least over 10, preferably 12 dKH = 4.3 meq/L, according to your test kit. Like I told you, adding Ca would drop your Alk.

 

About 2 tablespoons of baking soda mixed in water (preferably RO/DI filtered) should raise your 20 gal + 10 gal sump safely back to about 12 dKH.

 

the test kit i have it the red sea marine aquariums test lab and it reads in meq/l
the card read it as follow
0 -1.6 low
1.7 - 2.8 normal
2.9 - 3.6 high

 

even high 2.9 meq/L = 8.41 dKH
and 3.6 meq/L = 10.08 dKH according to the "high" readings.
If you want to shoot for an Alk of 10 - 14 dKH to support more calcium, then your water will have to read 3.6-5 meq/L Alk. The more calcium you put in, the more the alk will fall and you have to compensate by adding more buffer or baking soda.
DID YOU ADD IT YET?

 

yes; mixed and treated, will test the par today and post it