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Old 09-16-2006, 03:27 AM   #1
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Lighting question

I have a large FOWLR tank with plenty of LR. I have one of the Coralife fixtures that have blue actinic lights and MHs. I have been mainly running the blue actinic during the summer and now I have been putting the MHs on. When I put the MHs on I realized that the tank hada greenish appearance to it (not the water, more like on the surface of the rocks). There is also coraline algae still present but I am missing the pretty pinks and purples.

I am assuming that because I have been strictly using light in the blue spectrum I am not getting a "fuller" representation of coraline algae. Basically I have been promoting greener types of growth.

Does this make sense?

Thanks,
Pete R.
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Old 09-16-2006, 06:39 AM   #2
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Makes sense to me, although there could be many other factors involved...water params etc.
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Old 09-16-2006, 07:24 PM   #3
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Thanks.

Water parameters are all in spec.

The water itself is crystal clear thanks to my UV sterilizer.
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450g Acrylic FOWLR
380 lbs. of Live Rock
1 Yellow Tang, 1 Mono, 1 Blue Angel, 1 Foxface Lo, 1 Lunare Wrasse, 1 Snowflake Eel

1x Dolphin AS2100
1x Dolphin AM4700
72" Aqualight Pro: 4x96 Actinic, 3x150 HQI Halides, 4x1 moonlights
AquaC EV-1000 Protein Skimmer run by Dolphin AS2100
AquaUV 114 watt UV Sterilizer
2x Jager 250w
...Work in progess.....
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