Your Target Alkalinity DKH

[Tim Olson]

I try to keep it around 9.0, but I'm open to suggestions. My tank is still relatively new and my corals aren't really doing that great, so maybe an Alk change might help. I currently dose both Kalkwasser and BRS Alkalinity solution, so I can control it fairly easily.

 

[Acro maniac]

I keep both systems at 2.85meq or 8 dkh. Both are mixed one is 90% sps 10% lps
The other is 70% sps 20% lps and a couple ricordea colonies.
Been kicking around the idea of using the nsw here on tbe east coast of florida. Ive tested it a couple times and it aleays tests the same. Ive also tested water in Bimini and had the exact same levels. 2.62meq or 7.3 dkh.
That consistency is something i have never seen in any salt mix that i have used and i have used quit a few of them.

 

[Mindi]

i aim for 10.0-10.5 but admit I have never found why most aim so much higher than NSW which is typically 7.5. In my case it helps me a little to keep pH up over 8.0.

 

[Robink]

SPS dominant 8-9 dkh.

 

[Scott.h]

6.9. I like to live outside the box
Low nutrient system sps.

Mixed tank at 8.0 ..ish.

 

[Dahni]

Watch in HD ;-)

I'm hanging in the 7.8-8.0 as a target during the day.
In the morning I measure mostly 8.0-8.2
Borate Alkalinity is 0.3 according to Seachem

-Andre

Crazy beautiful! !

 

[ElectricMusic]

I shoot for and maintain a dKH 8.1 for my mixed reef (although right now it is dominated by softies). I don't plan on changing dKH any time soon. I believe it is more important to keep it stable (8.0 to 8.1 in my case). I also run Triton Core7 which suggests maintaining a minimum alkalinity of 8.0 dKH.

 

[Mr.Brightside]

Living in a big city our PH stays at 7.8-8.0 at atmospheric equilibrium so we keep our mixed reefs at 11-12dKH while also running other parameters on the higher end of what's acceptable. Helps keep our PH stable and at 8.2-8.35 according to the Apex.

 

[seamonster]

Mine is 8-8.5.. I try to keep it at 8. Mixed reef, sps dominated...

 

[Charterreefer]

Sps low nutrient 7.5 dkh

 

[Bruce Burnett]

I check mine only when I feel like it, if it is between 8-9.5 DKH then I do nothing. it is always in that range so other than keep my calcium reactor topped off not much to do.

 

[red13]

Sps dominate, I try and keep it at 8.4.

 

[bunnykins]

Running Triton 8.0 8.4

 

[Paul J]

Trying for 8.3 to 9.0. Using the two part system. Every time I ask my local store to test a water sample the result comes back a little low? Losing colour on the cup acans but as a mixed system it seems to be doing fine.

 

[Hans-Werner]

The "normalized" (to 35 psu salinity) total alkalinity in the Atlantic and Pacific Oceans is 2320 +/- 40 µmol/kg (Millero 1996). This is quite exactly 6.5 °dH KH alkalintiy.
I keep the alkalinity at 7 °dH KH. If the corals are phosphate limited (ULNS) it is good advice to keep it that low. At higher phosphate concentrations the alkalinity for best growth of corals may be a bit higher. The balance of inorganic carbon (bicarbonate = alkalinity) and phosphate is very important.

 

[Peng]

Acro tank. 7 to mid 7. I keep it as close to NSW as possible.

 

[Barry jones]

6.7-7.00 using the Aquaforest components 123+

 

[sil40sx]

Mixed reef, 8.2 - 8.6 swing. I dose Alk four times in 24 hours

 

[nervousmonkey]

7.3-7.7 mixed reef, Fauna Marin Balling Light

 

[Joshua Warne]

Sps dominant.... ULNS 7.0-7.5

Lps..... 8.0-8.5

Mixed Lps and soft.... 8-9

Why 8 for lps?