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#1
02-23-2009, 01:41 AM
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Did you aclimate them to your lighting? Do you have UV sheilded glass for hqi. Maybe you fried them. Nitrates could be lower but no big deal.
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72 gal bowfromt mixed reef sps dominated, 25 gal mineral mud type sump/refugium Skimmerless 2x250 14000k phoenix hqi 2x96 pc actinic, 50x flow 
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#2
02-23-2009, 01:46 AM
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Quote:
Just wondering...do you run carbon? Has your tank been like this from the get go or just recently?
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Christy's Reef Blog My 180 Build Every electronic component is shipped with smoke stored deep inside.... only a real genius can find a way to set it free.
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#3
02-23-2009, 01:56 AM
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400W is a lot of light and if you're having bleaching problems that would certainly be my first guess too. Try moving your lights up further, moving some coral down more, perhaps cut back on your photoperiod and remember to slowly acclimate coral by starting it off low in the tank.
You're magnesium is also a little on the low side and your phosphate and nitrate are a little high. Detectable nitrite is also really toxic. I'm assuming you mean Alkalinity 10.0 dkh? A picture is also worth a thousand words. Do you have one of your tank/setup that you could show us?
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"We shall dive down through black abysses... and in that lair of the Deep Ones we shall dwell amidst wonder and glory forever." - H.P. Lovecraft Old 120gal Tank Journal New 225gal Tank Journal May 2010 TOTM The 10th Annual Prince George Reef Tank Tour
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#4
02-23-2009, 02:02 AM
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Parnold I think I know you, you've been to my place and bought a lot of those frags off of me a few months ago didnt you?
__________________
"We shall dive down through black abysses... and in that lair of the Deep Ones we shall dwell amidst wonder and glory forever." - H.P. Lovecraft Old 120gal Tank Journal New 225gal Tank Journal May 2010 TOTM The 10th Annual Prince George Reef Tank Tour
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#5
02-23-2009, 02:37 AM
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Alkalinity seems quite low. If the "100" alkilintiy is in mg/L.
Alkalinity is typically reported as mg/L as CaCO3 (Calcium Carbonate) by Hagen test kits. This can be converted into milliEquivalents per Liter (mEq/L) by dividing by 50.To convert mEq/L (milliequivalent per liter)to dKH multiply by 2.8. To recap the conversion for the three units is: 1 meq/l = 2.8 dKH = 50 ppm CaCO3 so your 100 mg/L divided by 50 = 2 mEq/L 2 mEg/L times 2.8 = 5.6 dKH....quite low, I would bring it up to at least 8 dKH or 145 mg/L and the sps should stop bleaching. Last edited by Tailored Aquatics; 02-23-2009 at 02:44 AM.
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