Decadence January 29, 2013 January 29, 2013 Need water parameters including DKH, calcium and magnesium. Any changes recently? How long has this coral been in the tank? Are you feeding thing tank? Carbon dosing?
DaveS January 29, 2013 January 29, 2013 Is it just the underside of the coral? The part that gets shaded by the light? What kind of lighting fixture are you using?
DCReefer1964 January 29, 2013 Author January 29, 2013 Need water parameters including DKH, calcium and magnesium. Any changes recently? How long has this coral been in the tank? Are you feeding thing tank? Carbon dosing? DKH 12.9 CA 450 MG 1480 Temp 78 PH 8.17 SG got up to 1.030 corrected to 1.025 all other readings undetectable Lights AI Sols Blues Max 65% 3hrs.
DCReefer1964 January 29, 2013 Author January 29, 2013 DKH 12.9 CA 450 MG 1480 Temp 78 PH 8.17 SG got up to 1.030 corrected to 1.025 all other readings undetectable Lights AI Sols Blues Max 65% 3hrs. Dosing Brightwells 2part/MG/Stro/
zygote2k January 29, 2013 January 29, 2013 Can't say for certain about the coral itself, but why is the alk 12.9? seems a bit high.
surf&turf January 29, 2013 January 29, 2013 Can't say for certain about the coral itself, but why is the alk 12.9? seems a bit high. +1
Decadence January 29, 2013 January 29, 2013 Likely alk burn in the shaded areas. If SG was higher, alk, cal and mag would have been higher too. I lost a few corals that way when SG got to 1.030 and shaded areas went first.
DCReefer1964 January 29, 2013 Author January 29, 2013 Likely alk burn in the shaded areas. If SG was higher, alk, cal and mag would have been higher too. I lost a few corals that way when SG got to 1.030 and shaded areas went first. Where you able to save them. Should I just frag it, or wait it out? Do you guys think that I should do a water change? Please advise.
Jan January 29, 2013 January 29, 2013 Alk is high. I don't see any flatworms. Can you see any or red dots (red bugs) on the white part of the coral?
Coral Hind January 29, 2013 January 29, 2013 I agree looks like stress from the high alk and large SG swings. If the tissue keeps bleaching I would frag the tips about an inch up from the bleached area to try to save the coral so it can be grown out again.
DCReefer1964 January 29, 2013 Author January 29, 2013 Alk is high. I don't see any flatworms. Can you see any or red dots (red bugs) on the white part of the coral?No flats or red bugs Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
reef addict January 29, 2013 January 29, 2013 Golden sheel back here, but still newbie. Sorry cannot offer any advise.
ridetheducati January 29, 2013 January 29, 2013 When running a ULNS, SPS corals become very sensitive to alkalinity levels. FWIW here are the water parameter I like to follow: Water Parameters KH 7 - 8 Ca 400 - 420 Mg 1200 - 1350 Salinity 33-35 ppt K+ 380 - 400
DCReefer1964 January 29, 2013 Author January 29, 2013 When running a ULNS, SPS corals become very sensitive to alkalinity levels. FWIW here are the water parameter I like to follow: Water Parameters KH 7 - 8 Ca 400 - 420 Mg 1200 - 1350 Salinity 33-35 ppt K+ 380 - 400 thanks Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
ridetheducati January 29, 2013 January 29, 2013 Where you able to save them. Should I just frag it, or wait it out? Do you guys think that I should do a water change? Please advise. Stop dosing and let the alk drop naturally. Depending on the salt you are using, a water change will not help in the near term. Frag it and place on sandbed.
DCReefer1964 January 29, 2013 Author January 29, 2013 Stop dosing and let the alk drop naturally. Depending on the salt you are using, a water change will not help in the near term. Frag it and place on sandbed. Ok Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
overklok January 30, 2013 January 30, 2013 Drop the alkalinity, check your nitrates and phosphates. If you are close to zero on PO4 and NO3, you maybe into ULN. As Ride stated, ULN makes corals very sensitive to higher than natural alkalinity levels.
DCReefer1964 January 30, 2013 Author January 30, 2013 thanks Sent from my SAMSUNG-SGH-I717 using Tapatalk 2 Drop the alkalinity, check your nitrates and phosphates. If you are close to zero on PO4 and NO3, you maybe into ULN. As Ride stated, ULN makes corals very sensitive to higher than natural alkalinity levels. Well I frag the coral and left the base in it's current location. My son pointed out to me today. Dad the tank sure is bright. I had for got that I had set the AI SOL Blues to auto mode. For 4 day the coral was exposed to 8 hrs of W 94 B 94 R 90 vs a max of W 35 B 49 R38. Could this light change have also contributed to my current issues as I stated before no other Acros are affected.
zygote2k January 30, 2013 January 30, 2013 doubtful that lights could have caused the underside of the coral to bleach. more likely due to high alk and salinity fluctuations. alk is probably the most important parameter to keep steady in a marine tank.
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