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06/25/2019, 05:54 PM
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#1 |
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Registered Member
Join Date: Jan 2010
Location: Cincinnati, Ohio
Posts: 932
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hard white stuff on equipment (not salt creep)
Lately I have been noticing a hard white build up in my tank. Primarily on my powerhead in the sump, as well as inside my GFO and carbon reactors. It has a very hard crusty texture to it, but yet, it's thin. I at first thought of some sort of calcium deposits, but wouldn't that imply that my calcium level is too high? I certainly know that's not the case, cause I fight to get it to raise/maintain my desired level. I'm fighting to get it above low 300's.
Here are a couple pictures I just took. When I do a water change, and clean the reactors out, I have to use a butter knife to scrape it off the edges. I scrape it out every 3-4 weeks.  
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06/25/2019, 06:21 PM
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#2 |
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Registered Member
Join Date: May 2017
Posts: 632
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It looks like calcium / mineral deposits to me.
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06/25/2019, 06:22 PM
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#3 |
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Registered Member
Join Date: Jul 2008
Location: Huntsville, TX
Posts: 331
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This can also be caused by high PH.
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06/25/2019, 06:26 PM
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#4 |
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Registered Member
Join Date: Jan 2010
Location: Cincinnati, Ohio
Posts: 932
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my ph is at 8.1 (according to the salifert tests)
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06/25/2019, 06:27 PM
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#5 |
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Registered Member
Join Date: Jul 2008
Location: Huntsville, TX
Posts: 331
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What are you using to raise Cal/Alk?
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06/25/2019, 06:29 PM
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#6 |
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Registered Member
Join Date: Jan 2010
Location: Cincinnati, Ohio
Posts: 932
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I am using soda ash for alk.
And I am using calcium chloride both from bulk reef supply |
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06/25/2019, 07:28 PM
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#7 |
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Registered Member
Join Date: Sep 2003
Location: North Carolina
Posts: 20,050
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__________________
Who me? |
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06/26/2019, 05:10 AM
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#8 |
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Registered Member
Join Date: Jan 2010
Location: Cincinnati, Ohio
Posts: 932
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Yes, this is in the dosing section of my sump.
I can get the mag level tonight As for that link, that's exactly what it is. |
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06/26/2019, 04:36 PM
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#9 |
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Registered Member
Join Date: Mar 2007
Location: Las Cruces, New Mexico
Posts: 795
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Calcium precipitate
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06/26/2019, 05:22 PM
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#10 |
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Registered Member
Join Date: Nov 2009
Location: Reseda, Ca.
Posts: 1,717
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switch to sodium bicarbonate for ALK. Dose it slowly …...your soda ash is raising the ph causing the calcium to precipitate ….
__________________
Please don't feed the bears because the bears will become dependent on free handouts and forget how to take care of themselves …... Current Tank Info: 75 Gal. Mixed reef mostly sps |
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