ESV Seawater Mix Part B Questions

jonbar1

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As usual with ESV B-Ionic Seawater Mix, I am out of Part B first. I still have a few pounds of NaCl, a pound or two of Magnesium sulfate heptahydrate, and almost half a jug left of Part A. I am on a very tight budget and wanting to see if I can stretch out what I have left.

I used one drop of Part B to 4mL of distilled water to test with Saliferts Alk test and got an alk of 17.6 dKH(6.3meq/L or 314ppm). The same test for my DiY alkalinity mix using baked baking soda gave me 28dKH/10meq/500ppm. Now my question is can I use my DiY mix at ~60% concentration as a suitable replacement for the ESV Part B?

I know ESV mixes in the trace elements etc. in with the liquid parts of the mix, but I'm not sure if it is with Part A (calcium), Part B (alkalinity), or both. Their secret recipe is more unknown than Coca Cola's from what I can find online, so if anyone has some information it would be greatly appreciated. Their seawater mix is easily the best and the only one I prefer to use so I don't want to throw something way out of whack by adding in my own "Part B".
 
strange, ive used esv and never ran into that problem before. Should be enough to make without any extra left over..are you using a digital scale and if so is it calibrated?
 
I use a calibrated digital scale to make 4-5 gallons at a time. I do use about 10% more of A and B than per instructions to get ideal parameters. I wasn't trying to sound like I was complaining about the amounts they give, I just don't want what's left over to go to waste when it could be quite a few more water changes.

One major difference I've noticed between Part B and the DiY alk mix is how the DiY mix instantly turns cloudy when it hits tank water and the Part B stays clear but "wavy" like when you mix two liquids with different salinities.
 
ok youre using the 2 part system? im familiar with the 4 part. and yea i know what you mean, i think it looks really cool actually lol when its wavy
 

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