What light over chaeto?

lougotzz

New member
I posted the same topic in general discussion, but didnt really get a reply. I wanted to know what light to put over chaeto in a sump. Also, how long should it be run?

Thanks.
 

Mercer

New member
I've been having awesome luck with a 75w halogen flood light from Sylvania marketed under daylight something-or-other. The bulb has a blueish lens. My chaeto seems quite happy to get 16 hours of light in a day.
 

MSX-Jeff

Registered Member
Personally I love the 70w HPS that you can get at Lowe's for ~$70. Perfect spectrum for growing algae and HPS has the highest lumens per watt of any light.
 

Bzar

New member
I get good results with a $7 Walmart enersaver, natural white, 23 watt, 1050 lumen, 4100k self ballast/reflecting flood light screwed into a $5 outdoor water proof base.
 

EllieSuz

Premium Member
I'm using the same Walmart bulb as Bzar with great results. I have to trim the Chaeto weekly. It's a good idea to run the refugium lights on an opposite schedule as the Display Tank. I run mine twelve hours on, twelve off.
 

lougotzz

New member
<a href=showthread.php?s=&postid=15459020#post15459020 target=_blank>Originally posted</a> by EllieSuz
I'm using the same Walmart bulb as Bzar with great results. I have to trim the Chaeto weekly. It's a good idea to run the refugium lights on an opposite schedule as the Display Tank. I run mine twelve hours on, twelve off.

What like 9 am to 9 pm display lights on an d chaeto light off, and then 9pm to 9 am chaeto lights on?

Why is that?
 

EllieSuz

Premium Member
There is a normal ph change when the lights go out, so if you run your refugium lights opposite the Display, you reduce the ph variance.
 
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