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Old 01/01/2018, 11:10 AM   #1
Str8linespeed
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Alkalinity Question

Alright, Question time about alkalinity. This past summer my alkalinity, held in the 7-9 range with very minimal dosing. In the last few months it drops extremely fast. It will be in range and a in a couple weeks it will be down into the 5's. I raise it again and same thing.. I only test every couple of weeks, since all my other parameters hold so well. What causes it to drop so fast??


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Old 01/01/2018, 11:21 AM   #2
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Whats your coral load like? Have any coralline growing? Coralline will suck up alkalinity like there is no tomorrow.


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Old 01/01/2018, 11:27 AM   #3
Str8linespeed
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Whats your coral load like? Have any coralline growing? Coralline will suck up alkalinity like there is no tomorrow.
Very interesting! I probably have 20+ different coral in my 65 gal, SPS, LPS and softies. All of my rock is covered in coralline as well. I was not aware that the coral and coralline suck it up that fast, I'll keep an closer eye on it.


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Old 01/01/2018, 12:38 PM   #4
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You can use as much as 2 DKH daily. With that coral load, I would consider testing daily for a bit.


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Old 01/01/2018, 02:00 PM   #5
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Yep. Time to start dosing, my friend.

You will want to test for calcium too.


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Old 01/01/2018, 03:47 PM   #6
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All of my rock is covered in coralline
bingo.....there you go....waiting till your dkh is 5 then boosting way up is a recipe for disaster....you want to keep your parameters steady ESPECIALLY alkalinity


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Old 01/01/2018, 04:48 PM   #7
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You can use as much as 2 DKH daily. With that coral load, I would consider testing daily for a bit.
I agree. 2-3 dKH per day is fairly common. My soft coral tanks went through that much a day due to coralline growth.


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Old 01/01/2018, 05:03 PM   #8
Str8linespeed
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Very interesting, knowing that info above I'll test every couple days again to keep an eye on it. My calcium doesnt fluctuate like the alkalinity and I very rarely have to dose calcium.

All other parameters seem to hold very steady, so I only tested every couple of weeks until the last few months.. Guess its time to start testing more frequently.


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Old 01/01/2018, 06:07 PM   #9
mluntz
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You'll probably have to dose daily to get you levels up. Also don't raise your dkh more than 1 dkh daily. bigger fluctuations can be dangerous. Also keep an eye on you ph as this will fluctuate with your alkalinity. Good luck.


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