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How to reduce dKh?


PowderTang
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  • SRC Member

Wc with low kh salt like skimz salt or red sea blue bucket salt or tropic marin.

Stop dosing any kh supplements.

Sent from my GT-N7105 using Tapatalk

| Display : 48x30x22 Skimmer : SK-201 skimz

| Sump : 30x24x18 Wavemaker : 2x RW-15 , 1x RW-8

| Cooling : 1HP titanium drop in coil ATO : JBJ

| Lighting : ATI Sunpower 8x54w + 48x cree xte royal blue Return : Jebao dc-6000

| Dosing : Jebao dosing pump [ CaCl2 + NaHCO3 ] Pump :

| Reactor : FSZ Z160 zeolite reactor & phosban 150

| System : ZEOVIT

decomm-ed :

Ydkm SPS reef

:wub: >><< :wub:

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I using salifert to test and Red Sea salt that says kh 7.7 and alk t2.8 meq/l

Have been doing 10-20% water change twice this week with NSW

Won't go down

What makes it so high ? Used to add strontium, calcium, magnesium and pH 8.2 buffer, that's all..

Now I stopped adding any...hp I wonder what makes it so high?

Will it affect my LPS ?

Thanks

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Ok I realized why it is high It's because I increase the pH using pH buffer. Yes now kh is reduced during water changes...but then I test pH again, pH dropped to like 7.8 ! If I increase the pH, the kh will increase again Anyone has come across this problem ? Or is there anyone with pH above 8 and yet kh is normal ?

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My kh is at 9, ph varies 8.1-8.3. Kh and ph will increase together. For me the easiest way is to dose the 2 part solution (eg c-balance) to bring your ph and kh to the ideal level, no need to dose ph buffer. You can also try using kalk to increase ph and Kh together

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Or just stop your kh dosing. But must monitor with test

6.5 * 2 * 2 + 3.75 * 1.5 *1.5,(Decomn on 14/9/08)
4*2*2 + 2.5*1.25*1.25 (Decomn on 1/8/09)
5*2*2 (Fully LED light system, 140 3 watt SSC leds with 60 degree lens)(Decomm)
2.5*2*2(Fully LED Light System,96 3 watt SSC leds with 60 degree lens)(Decomm)

5*2.5*2(LED only)

Eheim return 1 * pump

1 HP Daikin compressor with cooling coil
2 Jebao OW40, 1 ecotech MP40,
1X6085 Tunze wm,

1 CURVE 7 Skimmer

  1 DIY 80 led control by Bluefish mini 

1 radion XR30W G2, 2 Radion XR15G3

Sump area lite by 5 ft T5 , 6 * SSC 3 watt red LED for refugium

1 Full spectrum E27 led light

1 CR control by bubble count

Start No Water Change since 1st Dec 2016

Add new 2.5x2x 1.5 ft 

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My kh is now 9, is it good enough ? Wads the ideal parameters for reef tank ? Thanks

KH - 7~ 11 dKH

Ca - 375 - 450 ppm

P04 - 0 ~ 0.03

Nitrate - 0 ~ 0.2

Amonia - 0 ~ 0.1

Nitrite - 0 - 0.2

Mg - 1250 ~ 1350 ppm

Salinity - 1.025 ~ 1.027

PH - 7.8 ~ 8.5

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  • SRC Member

How to set ur current water to kh9 ... My at 10

Dont dose any kh for the time being . Let it drop till 9 by itself

Sent from my GT-N7105 using Tapatalk

| Display : 48x30x22 Skimmer : SK-201 skimz

| Sump : 30x24x18 Wavemaker : 2x RW-15 , 1x RW-8

| Cooling : 1HP titanium drop in coil ATO : JBJ

| Lighting : ATI Sunpower 8x54w + 48x cree xte royal blue Return : Jebao dc-6000

| Dosing : Jebao dosing pump [ CaCl2 + NaHCO3 ] Pump :

| Reactor : FSZ Z160 zeolite reactor & phosban 150

| System : ZEOVIT

decomm-ed :

Ydkm SPS reef

:wub: >><< :wub:

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