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Old 01/17/2008, 04:44 PM   #1
Acropora Nut
Rickyrooz1's Avatar
Join Date: Jul 2006
Location: Newtown, PA
Posts: 2,453
Arrow RTN Question

I usually keep my 120g's salinity at 1.026, KH at 7.0, Calcium at 420 and Magnesium at 1350. I went away for a week but before I left the salinity was at 1.030 so I took out some water and added fresh R/O water. When I came home the SG was at 1.022 and the KH was 7.7, Ca was 370 and Mg was 1050! My Purple Tri-Color turned brown and two of my green acro's started to lose tissue. Could this have been caused by bad alkalinity values or a low levels of Ca and Mg or because the salinity dropped?

120 Gallon Acropora dominated tank, barebottom, APEX Controller, ATI Sunpower 8x54w, Skimz SM163, Jebao DCT 6000 return pump & two Jebao OW-40.

Current Tank Info: SPS Dominated
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Old 01/17/2008, 05:08 PM   #2
B'rer Reefer
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Join Date: Jan 2001
Location: Greenwich, CT
Posts: 3,194
Possible misreading of the initial test results?

Be Kind To The Elderly. Life Without Parole Means Nothing To Us.

ToTM 3-03

Current Tank Info: Between tanks. Searching for a home
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