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Unread 05/22/2019, 12:17 PM   #1
LucidGoblin
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Raising Calcium, Not Alkalinity

My Calcium is very low: 260 mg/L (ppm). My Alkalinity is good: 7.7 dKH (2.73 meq/L). I have a two part calcium/carbonate system. Questions:
Can I use just the calcium solution by itself as long as my Alkalinity stays within acceptable range?
Is there another way to raise Calcium without raising Alkalinity?
Is it normal to have such a divergence in the two readings?



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Unread 05/22/2019, 01:50 PM   #2
hkgar
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Quote:
Originally Posted by LucidGoblin View Post
My Calcium is very low: 260 mg/L (ppm). My Alkalinity is good: 7.7 dKH (2.73 meq/L). I have a two part calcium/carbonate system. Questions:
Can I use just the calcium solution by itself as long as my Alkalinity stays within acceptable range? Yes

Is there another way to raise Calcium without raising Alkalinity?Yes, adding Kalk to top off water

Is it normal to have such a divergence in the two readings?



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180 gallon, 40 gallon sump, 3 250 W MH + 4 80W ATI T5's, MTC MVX 36 Skimmer, Apex controller Aquamaxx T-3 CaRx

Current Tank Info: A 2 Barred Rabbitfish, Red Head Salon, Yellow/Purple, McMaster Fairy, Possum, 2 Leopard Wrasses, Kole, & Atlantic Blue Tangs, 2 Percula Clown, 3 PJ and 1 Banggai Cardinalfish , Swallowtail, Bellus and Coral Beauty Angels
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Unread 05/22/2019, 04:25 PM   #3
Vinny Kreyling
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Keep an eye on Magnesium, they are all tied together.


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250 gallon mixed reef, 2 Reefbreeder's Photon V 2, Deepwater BLDC 12, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps.
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Unread 05/22/2019, 06:34 PM   #4
bertoni
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Kalk adds alkalinity and calcium, so that won't work. Just dose some calcium chloride, like Kent Turbo Calcium. It'll be fine. People do this regularly.


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Unread 05/28/2019, 07:14 AM   #5
yacn
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Seachem Reef Advantage Calcium - powder


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Unread 05/28/2019, 07:29 PM   #6
bertoni
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That's a fine product, too. It's mostly calcium chloride, with a bit of magnesium and strontium.


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