Lighting question - Aquarium Advice

peterac · 09-16-2006, 03:27 AM

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.

Wood_Dog · 09-16-2006, 06:39 AM

Makes sense to me, although there could be many other factors involved...water params etc.

peterac · 09-16-2006, 07:24 PM

Thanks.

Water parameters are all in spec.

The water itself is crystal clear thanks to my UV sterilizer.

09-16-2006, 03:27 AM	#1
peterac Aquarium Advice Activist Join Date: Nov 2004 Location: Long Island, New York Posts: 161	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.

09-16-2006, 07:24 PM	#3
peterac Aquarium Advice Activist Join Date: Nov 2004 Location: Long Island, New York Posts: 161	Thanks. Water parameters are all in spec. The water itself is crystal clear thanks to my UV sterilizer. __________________ 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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09-16-2006, 06:39 AM	#2
Wood_Dog Aquarium Advice Freak Join Date: Dec 2005 Location: Victoria, Australia Posts: 266	Makes sense to me, although there could be many other factors involved...water params etc.