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zaireguy
08/30/2017, 07:52 PM
What salts are most of you using?I am running red sea pro and it keeps my alk at 12dkh.i want to try keeping sps I have one frag now as a test
Now most everyone is telling me to switch salts to lower and keep alk at a round 9 so I thought I would ask here in the sps forum what most of you keep your alk at and what salt you run my cal is a round 480 and my mag runs about 1380
Thanks

reefwiser
08/30/2017, 08:02 PM
Keep mine at 8 dkh


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Wiskey
08/30/2017, 09:22 PM
I use Reef Crystals. I've used IO in the past, but I've had great results over the years with both of these and have no need to switch.

The ALK is high in them, and the CA a touch low by comparison but my system uses ALK so fast it's not a problem. I dose a little CA and with a 10% water change it only bumps my AlK from like 7.0 to 7.2. With the CA reactor it drops back to 7.0 after a couple weeks. Not enough of a swing for me to be concerned.

Whiskey

murphreef
08/30/2017, 09:28 PM
Tropic Marin Pro

Has lower Alk but overall corals love it.

I keep my Alk around 8dkh

DiscusHeckel
08/31/2017, 07:15 AM
Tropic Marin Pro

I keep my alkalinity between 6.4-6.8 dKH

ssgss gogeta
08/31/2017, 07:33 AM
Tropic Marin Pro

I keep my alkalinity between 6.4-6.8 dKH



Do you have sps and other corals and hey are ok that low?


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DiscusHeckel
08/31/2017, 07:38 AM
Do you have sps and other corals and hey are ok that low?


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Yes, I do. Here are some of my corals. They thrive at low levels of alkalinity.

https://youtu.be/f_2-Hr1VEzk

ssgss gogeta
08/31/2017, 07:39 AM
Yes, I do. Here are some of my corals. They thrive at low levels of alkalinity.

https://youtu.be/f_2-Hr1VEzk



That's really interesting. How long have you run it that low for? I guess as long as it's consistent right?


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DiscusHeckel
08/31/2017, 07:40 AM
That's really interesting. How long have you run it that low for? I guess as long as it's consistent right?


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Since March 2015.

ssgss gogeta
08/31/2017, 07:41 AM
Since March 2015.



Man that's really interesting! And in the video everything look thriving


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DiscusHeckel
08/31/2017, 07:52 AM
Man that's really interesting! And in the video everything look thriving


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A thriving reef does not just depend on a single parameter, such as alkalinity. In my opinion, you need to study a reef tank in its own entirety by taking a holistic approach by which I mean investigating its water temperature, water flow, light intensity and spectrum, nutrient input and output ratio and water parameters including trace elements.

nemodan
08/31/2017, 08:03 AM
A thriving reef does not just depend on a single parameter, such as alkalinity. In my opinion, you need to study a reef tank in its own entirety by taking a holistic approach by which I mean investigating its water temperature, water flow, light intensity and spectrum, nutrient input and output ratio and water parameters including trace elements.

Agree 100%

Reef Crystals
Alk ~7 dkh

https://youtu.be/EEOKyyg1MTA

Best
Daniel

ozmosis7
08/31/2017, 08:11 AM
I started using Coralife salt when I was in a pinch and that was all I could find. I tried switching back, but I find the coralline works best for me overall.

ssgss gogeta
08/31/2017, 08:45 AM
A thriving reef does not just depend on a single parameter, such as alkalinity. In my opinion, you need to study a reef tank in its own entirety by taking a holistic approach by which I mean investigating its water temperature, water flow, light intensity and spectrum, nutrient input and output ratio and water parameters including trace elements.



Curious question I'll try not to derail the thread too much. But where do you have your calcium and magnesium at with the lower alk?


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jda
08/31/2017, 08:51 AM
Low 7s, 440 and I never check mag. NSW is high 6 or low 7, IIRC.

I use IO for decades outside of a few side tries of different salts which I did not like as much.

ssgss gogeta
08/31/2017, 08:53 AM
Low 7s, 440 and I never check mag. NSW is high 6 or low 7, IIRC.

I use IO for decades outside of a few side tries of different salts which I did not like as much.



Yeah usually NSW is around 7, I guess it begs the question do we think we can improve upon natures best efforts?


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Bpb
08/31/2017, 09:59 PM
Always remember that alkalinity levels tending the same direction as nitrogen and phosphorous levels tend to lead to happier corals. You'll have comparable growth rates with higher nutrients and higher alkalinity as you will with lower nutrients and lower alkalinity. I am not a marine biologist and don't understand coral physiology on an collegiate or professional level, but I'm a fairly smart guy who has read and experienced enough to find this to be the case.

It is when you mis match them (low alkalinity with high nutrients = poor color and polyp extension, slow growth, or worse low nutrients high alkalinity = sps tip burn, brittle tissue, rapid tissue necrosis) when you run into problems

By increasing nutrients and alkalinity beyond natural seawater levels we aren't improving upon Mother Nature and evolution, simply taking advantage of the adaptable mechanisms corals have in place to thrive under a variety of conditions s


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reefmutt
09/01/2017, 07:56 AM
A thriving reef does not just depend on a single parameter, such as alkalinity. In my opinion, you need to study a reef tank in its own entirety by taking a holistic approach by which I mean investigating its water temperature, water flow, light intensity and spectrum, nutrient input and output ratio and water parameters including trace elements.

Agreed.
I have used instant ocean, Red Sea blue bucket, h2ocean. All with good results.
I've had my alk between 6 and 7 for quite some time and wouldn't ever run it over 8. My target is 7. I have found in my system that over 8 gives me growth tip issues..
It isn't my salt that I rely on for alk (or ca, sr, k, mg) it is my ca reactor and kalk stirrer as well as testing and tweaking the levels to my satisfaction..
Once there are enough sps in your system, your water changes will not suffice for parameter maintenance..

DiscusHeckel
09/01/2017, 02:01 PM
Curious question I'll try not to derail the thread too much. But where do you have your calcium and magnesium at with the lower alk?


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Calcium usually stays between 400-405 ppm and magnesium stays between 1280-1350 ppm.

jda
09/01/2017, 04:50 PM
I also agree that alk and calcium should match closely with N and P... there is too much evidence of this for me to ignore, including the ocean. I will also add in light levels in reverse application.