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My refugium is about 20"x10" area in the sump. The micro algae in it never grows well. I am using a 65W power compact light. I think the light is not strong enough. What do you think?

what's the "color" of your 65w PC light? I think I'm using a 6500K light and the chaeto is doing great.

There must be something else wrong then. Myabe I don't feed the refugium enough water.

(edited)

I have 2 20 watt Halogens and my cheato grows like crazy BUT the halogens burn very hot.

Edited by sen5241b

Maybe there is something else keeping the macros from growing. If your water is nutrient-poor, the macros will suffer.

I've used this lamp, or similar.

http://www.melevsreef.com/fuge_bulb.html

 

I just got a lamp like this from home depot, is a Ecosmart 15/65 compact fluorescent daylight R30 flood, according to the packaging it's 5000K was $10.97

 

Just looked and found this one for $7.97 http://www.homedepot.com/h_d1/N-5yc1v/R-100663844/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053

 

same as the one that I bought except the one I bought says it's dimmable, wish I had seen this one, oh well maybe next time

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