48x24x18....175's or 250's

48x24x18....175's or 250's

  • 175w

    Votes: 8 11.1%
  • 250w

    Votes: 64 88.9%

  • Total voters
    72
I run 175s

I run 175s

I have a standard 55 gallon reef ready AGA. I run two 175 watt SE XM 10ks and a 55 watt pc actinit. I have a mixed reef. I have run this succesfully for years with good growth.

I don't run a chiller, my max temp in the summer is about 83 degrees. I considered upgrading to 250s but feared I would then need a chiller. So your decision may include consideration as to whether you want the expense of a chiller.
 
I have forgotten everything in the thread and I am too mezmerized by the avatar. I don't get it? what is happening there. :lol:

You may now resume.
 
Inlight of recent testing by Sanjay of the 175W Iwasaki 14k's,
I would go with the 175W.
In the test, the Iwasaki 14k's actually had higher PAR than quite a few 250W bulbs.
With only 18" of height, the 175W would fit the bill.
 
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