High Alkalinity

PerculaClown · 09-26-2006, 05:05 PM

I dont know how it happend but my alkalinity readings are off the chart. It reads 16 DKH!. My Calcium levels are at 500 and all other parameters are okay. What do i need to do to lower the alk? Does high alk hurt my corals?

**Fishfirst** · 09-27-2006, 11:08 AM

yikes!!! I'd make some smaller water changes with just plain RO water and salt... looks like an o.d. on calcium (you want it to be around 410ppm). The alk should come down along with the calcium.

PerculaClown · 09-27-2006, 12:12 PM

If it will help any, to maintain calcium and alkalinity i use kalwasser. I will try to do a water change and see what happens.

**Fishfirst** · 09-27-2006, 01:21 PM

your slightly overdosing... do some water changes with just your salt, no additives

PerculaClown · 09-27-2006, 02:50 PM

could the salt mix im using is causing this problem? I use instant ocean. Oh yeah i forgot to say that i recently switched from tap water to RO water to do water changes. Maybe this change caused the problem.

**Fishfirst** · 09-27-2006, 02:53 PM

IO reads around 340-360 ppm for me...

PerculaClown · 09-27-2006, 06:10 PM

i found a formula on the net that says to change from dkh to ppm multiply by 21.8. So if i have 16dkh that would be 348 ppm. Thats about the same as yours reads.

09-26-2006, 05:05 PM	#1
PerculaClown Senior Member Join Date: Apr 2006 Age: 18 Posts: 116	High Alkalinity I dont know how it happend but my alkalinity readings are off the chart. It reads 16 DKH!. My Calcium levels are at 500 and all other parameters are okay. What do i need to do to lower the alk? Does high alk hurt my corals?

09-27-2006, 11:08 AM	#2
Fishfirst Fish Guru Join Date: Jan 2005 Location: Northern Wisconsin Age: 24 Posts: 3,546	yikes!!! I'd make some smaller water changes with just plain RO water and salt... looks like an o.d. on calcium (you want it to be around 410ppm). The alk should come down along with the calcium. __________________ 210 Gal Reef w/ 55 Gallon Sump/Fuge, 125 Gal Fish Only, 65 Gal Seahorse-29 Gallon Sump, 55 Gal FOWLR, 54 Gal Corner FW Community, 20 Gal Nano FOWLR, 55 Gal Piranha, 29 gallon QT "All the yellow tangs and clownfish in the world can't save you now! hahahah" Peter from Family Guy

09-27-2006, 01:21 PM	#4
Fishfirst Fish Guru Join Date: Jan 2005 Location: Northern Wisconsin Age: 24 Posts: 3,546	your slightly overdosing... do some water changes with just your salt, no additives __________________ 210 Gal Reef w/ 55 Gallon Sump/Fuge, 125 Gal Fish Only, 65 Gal Seahorse-29 Gallon Sump, 55 Gal FOWLR, 54 Gal Corner FW Community, 20 Gal Nano FOWLR, 55 Gal Piranha, 29 gallon QT "All the yellow tangs and clownfish in the world can't save you now! hahahah" Peter from Family Guy

09-27-2006, 02:53 PM	#6
Fishfirst Fish Guru Join Date: Jan 2005 Location: Northern Wisconsin Age: 24 Posts: 3,546	IO reads around 340-360 ppm for me... __________________ 210 Gal Reef w/ 55 Gallon Sump/Fuge, 125 Gal Fish Only, 65 Gal Seahorse-29 Gallon Sump, 55 Gal FOWLR, 54 Gal Corner FW Community, 20 Gal Nano FOWLR, 55 Gal Piranha, 29 gallon QT "All the yellow tangs and clownfish in the world can't save you now! hahahah" Peter from Family Guy

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09-27-2006, 12:12 PM	#3
PerculaClown Senior Member Join Date: Apr 2006 Age: 18 Posts: 116	If it will help any, to maintain calcium and alkalinity i use kalwasser. I will try to do a water change and see what happens.

09-27-2006, 02:50 PM	#5
PerculaClown Senior Member Join Date: Apr 2006 Age: 18 Posts: 116	could the salt mix im using is causing this problem? I use instant ocean. Oh yeah i forgot to say that i recently switched from tap water to RO water to do water changes. Maybe this change caused the problem.

09-27-2006, 06:10 PM	#7
PerculaClown Senior Member Join Date: Apr 2006 Age: 18 Posts: 116	i found a formula on the net that says to change from dkh to ppm multiply by 21.8. So if i have 16dkh that would be 348 ppm. Thats about the same as yours reads.

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