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#1
02-23-2009, 12:49 AM
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What is wrong
The problem - I am losing corals slowly but surely. I have lost 3 different montys a procilapora, blue tip stag, horn coral, and green digitata. They all seem to bleach out. I have a colt coral that turned dark purple and none of his polyps are out, not sure if he is dying. Other corals that seem to be fine are favia, bubble, frogspawn, xenia, zoos, and duncans. None of the corals were large, mostly frags.The fish all seem to do fine but my rose bubble tip has shriveled up and disappeared.
Water Parameters: PH 8.0 Nitate 10 Nitrite 0.1 Ammonia 0 Alkalinity 100 Calcium 440 Phosphate 0.25 Magnesium 1220 Salinity 1.0245 Temp 78-81 I am using RO/DI for my top up and regular water changes, not dosing anything. Using an eco plus 633 skimmer and a phosban reactor. Have two double ended 400 watt 14000K metal halides set 8 inches off surface for 7 hrs a day. Circulation is 10 times through sump plus 22 times in display. Cant seem to grow macros in the sump chaeto doesn't die but doesn't grow either, I used miracle mud at initial setup. The tank is over a year old. Does anything stand out that could be the cause. 
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#2
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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#3
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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#4
02-23-2009, 01:52 AM
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are you sure about your Alkalinity ,100 seems wrong, what are you testing with ?
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aga 180g dual overflow 77g sump, mak 4 return, dart pump for closed loop 3 250w se 15,000k mh, 4 80w t5 250 vertex skimmer,3l vertex zeo reactor, marine tech cal reactor.regal,powder brown and yellow tangs, chromis eyelash blennie blue mandran, slowly filling with SPS
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#5
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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#6
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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#7
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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#10
02-23-2009, 04:38 AM
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What is wrong
My lights are Hamilton, came with glass shield, dont know if it is UV shield.
I do run carbon. Alkalinity is 100 mg/L tested with Hagen I did start corals off low moved them higher after a week, I will try raising my lights to 12 inches off surface and cut back to a six hour time. I thought the magnesium might have been low. Using aquacraft Meerzsalt and have since heard it is low in mag, have also noticed the coraline is not growing so much which I read is a sign. Whatcaneyedo - it is me. The frags I got from you were not the only ones I lost. After seeing your coral I am pretty sure it has nothing to do with the specimens. Will try retesting the ones of concern What would be the best way to raise the Alk and Mag?
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