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Unread 01/20/2019, 06:58 PM   #1
ChronicReefH2o
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Join Date: Jan 2019
Location: South SoCal
Posts: 61
SPS turning green...?

My concern are SPS corals are turning green? What could be the reason for SPS too morph to a green color from a vibrate coloration.

Parameter are listed below (all parameter are solid and stable)
Salinity - 1.025sg
Temp - 78F
Alkalinity - 8-9 dkh
Calcium - 430-440ppm
Magnesium - 1370-1430ppm
Phosphate - 0.18ppm
Nitrate - 2-4ppm

Lighting are 4 T5 bulbs in the order of front to back.
1) ATI Blue Plus
2) ATI Actinic
3) ATI Purple Plus
4) ATI Blue Plus

Tank is a 4 feet by 2 feet by 1 feet frag tank. The tank has been running for 2 years going on 3 in July. SPS have been accumulated to the tank for about 2 months maybe longer.


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Unread 01/20/2019, 07:03 PM   #2
Pslreefer
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Location: Port St Lucie, FL
Posts: 597
Po4 is kinda high but I don’t think that is why? How long have you had them in your tank?


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Unread 01/20/2019, 07:06 PM   #3
cboltsd
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Are you dosing anything else for trace elements? I know excessive iron may cause the corals to turn greenish.

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Unread 01/20/2019, 07:32 PM   #4
ChronicReefH2o
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I am currently only dosing Alkalinity, Calcium, and Magnesium from BRS 2 part. As for Phosphate, I realize that the values are high, but in the process of lowering them down to 0.03 to 0.08. SPS have been accumulated to the tank for about 2 months maybe longer.


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