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Old 01/19/2018, 12:46 PM   #1
Livingjewels
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Anyone run their tanks at or around 11 dkh

I have high alk and canít get it to drop :

As the tittle does anyone run a successful tank at this range...?

My question is because I have around 10 reasonably sized sps frags and 3 lps frags.
Lps seem fine and happy..
Sps are throwing out mesenstrial filaments and look like the tips are deteriorating.

The sps have been in the tank for 2 weeks and the lps about 6 weeks.


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Old 01/19/2018, 01:13 PM   #2
colbk
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Too high Alkilinity

I am having the same problem. I checked my new RO water after I have added the correct amount of Instant Ocean Reef Crystals. It is around 12.6 right out of the 55 gallon drum. So I either have to live with it or find a way to reduce it.


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Old 01/19/2018, 01:42 PM   #3
Livingjewels
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Red Sea recommend a high kh in their Reef programme, what I don’t understand is why would they say that if it burns sps tissue.

Am I missing out on something ?

Salt is slightly elevated at 12 to allow it to be averaged out to say 8 after a waterchange.
That’s banking on a tank that consumes it ..


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Old 01/19/2018, 01:46 PM   #4
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One can either switch salts or use muriatic acid to lower their alk in their newly mixed salt water..

A level of 7-11dKH is considered "acceptable/good range"..
Though many are reporting issues (burnt tips of SPS,etc..) when keeping alk in the higher area and match that with low nutrient levels..


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Old 01/19/2018, 01:54 PM   #5
Livingjewels
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So is that the key to it.. to feed more..? My nutrients are about 5ppm no3 and o.o4 po4 ppm would you say these are too low?

I was thinking it may be lighting or flow.. ?

I’ve lowered my 4 Vortechs to 20% each so I could possibly rule that out they’ve been like that since adding them.

My lighting is on35% radions . Around a 12 k spectrum


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Old 01/19/2018, 02:13 PM   #6
mcgyvr
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Quote:
Originally Posted by Livingjewels View Post
So is that the key to it.. to feed more..? My nutrients are about 5ppm no3 and o.o4 po4 ppm would you say these are too low?

I was thinking it may be lighting or flow.. ?

Iíve lowered my 4 Vortechs to 20% each so I could possibly rule that out theyíve been like that since adding them.

My lighting is on35% radions . Around a 12 k spectrum
I highly doubt your alk being 11 is an issue with that level of nutrients..
I would need A LOT more information to take a guess at what the problem may be..

A complete tank history/parameter log/photos may help though


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Old 01/19/2018, 02:35 PM   #7
hkgar
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http://reefcentral.com/forums/showthread.php?t=2253547


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180 gallon, 30 gallon sump, 8 ATI T5's, MTC MVX 36 Skimmer, Apex controller Reef Octopus CaRx

Current Tank Info: Exquis. Firefish, Carpenter, Red Head, Yellow/Purple, Hoevans, Possum Wrasses, Kole, Purple & Atlantic Blue Tangs, Matted Filefish, 2 Percula Clown, 4 PJ Cardinals, Lamarck & Swallowtail Angels
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Old 01/19/2018, 03:51 PM   #8
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Some tanks that run with low nutrient levels seem to have issues with alkalinity that high, but we don't know what's happening. You could try lowering the alkalinity by doing some water changes with a lower-alkalinity mix, or by dosing your current mix with a bit of muriatic acid. Of course, if the consumption level is high enough, just stopping any supplementation should fix the issue fairly quickly. Increasing the nutrients might help, as well.

If you want to dose muriatic acid, I'd suggest using chemical resistant elbow-length gloves and goggles. The fumes are toxic, and any acid in the eyes or other delicate areas could cause a lot of damage. It's about 3.3 ml per 10 gallons to drop the dKH by about 2.8.


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Old 01/20/2018, 01:59 AM   #9
Livingjewels
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I’ll have a look into that thanks..


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