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DJChesnutRabbit · 03-09-2008, 02:23 PM

I find it impossible your Ca was in the 400's without Ca supplementation. IO tests in the low 300's at best. Also, IO is typically low in magnesium and high in Alk.
I use RC (Reef Crystals) and I still have to correct the Ca, Alk, PH and Mag.
Let me ask, do you make corrections to your water change water ?
In other words, to my fresh salt water, I add 1 and a 1/2 cups of 2 part calcium (calcium chloride,) 1 and a 1/2 cups of 3 part magnesium (magnesium sulfate and magnesium chloride,) and a 1/2 cup of 2 part Alk (Sodium Carbonate)
That correction in 20 gallons of RC (11 and 1/2 cups of salt) at 1.025sg make the parameters;
calcium 450ppm
magnesium 1350 mg/l
Alk 2.75 meq/l
PH 8.4
I highly recommend you test your fresh salt water, and use this, Reef Chemistry Calculator , to make the proper corrections to your water change water.
You can also use the calculator to make the corrections to your display.

Also, it helps us help you to let us know your actual test results. I.E. PH 8.6 and Alk 7 meq/l, instead of PH slightly high and Alk slightly high.

I hope my ramblings help you some.

03-09-2008, 02:23 PM	#11 (permalink)
DJChesnutRabbit Senior Member Join Date: Jun 2007 Location: Kissimmee Posts: 115	I find it impossible your Ca was in the 400's without Ca supplementation. IO tests in the low 300's at best. Also, IO is typically low in magnesium and high in Alk. I use RC (Reef Crystals) and I still have to correct the Ca, Alk, PH and Mag. Let me ask, do you make corrections to your water change water ? In other words, to my fresh salt water, I add 1 and a 1/2 cups of 2 part calcium (calcium chloride,) 1 and a 1/2 cups of 3 part magnesium (magnesium sulfate and magnesium chloride,) and a 1/2 cup of 2 part Alk (Sodium Carbonate) That correction in 20 gallons of RC (11 and 1/2 cups of salt) at 1.025sg make the parameters; calcium 450ppm magnesium 1350 mg/l Alk 2.75 meq/l PH 8.4 I highly recommend you test your fresh salt water, and use this, Reef Chemistry Calculator , to make the proper corrections to your water change water. You can also use the calculator to make the corrections to your display. Also, it helps us help you to let us know your actual test results. I.E. PH 8.6 and Alk 7 meq/l, instead of PH slightly high and Alk slightly high. I hope my ramblings help you some. Last edited by DJChesnutRabbit : 03-09-2008 at 02:26 PM.