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scubayou
11/27/2006, 08:02 PM
XM or not XM that is the question
I currantly am running 2 175w 15,000 k metal halides on my 75g mixed reef for about 9 months and have not been impressed. They have lost a lot of there color output and are dim. Any suggestions on there replacement.These bulbs lacked punch from the get go

Gundo5000
11/27/2006, 08:53 PM
Pheonix 14K

Fiziksgeek
11/27/2006, 09:41 PM
Iwasaki 14K if you want a little more punch.

scubayou
11/29/2006, 05:04 AM
<a href=showthread.php?s=&postid=8632347#post8632347 target=_blank>Originally posted</a> by Fiziksgeek
Iwasaki 14K if you want a little more punch.

I have heard Iwasaki 14 k was good. I hate buying new bulbs without seeing them like I did with the XM. Never heard of pheonix though. I used to use Hamilton 10k bulbs but they would lose color rendition quite quickly.

blueface
11/29/2006, 03:40 PM
phoenix 14K are great bulbs but they do not make it for 175w
try using a XM10K much higher par than XM15K

what ballast are you using

scubayou
11/29/2006, 08:36 PM
<a href=showthread.php?s=&postid=8644078#post8644078 target=_blank>Originally posted</a> by blueface
phoenix 14K are great bulbs but they do not make it for 175w
try using a XM10K much higher par than XM15K

what ballast are you using

Well I am affraid to buy another xm bulb. I did like the color rendition for about 4 months till it gradually dropped off. It was quite a shock to go fromm 10k hamiltons to 15 k xm, Ithought who turned out the lights? My ballest is 13 +years old and is OEM to my light hood which was Coralife or Hamilton I can't recall. I believe back then they were the same hood and ballest anyway.I might add that I do run 2 40 watt actincs as well over this tank

blueface
11/30/2006, 04:32 PM
with that ballast the XM10K will be a good choice cant remember the exact par but it's over 600 very close to the 6500K Iwasaki's

scubayou
11/30/2006, 07:24 PM
Have you seen a 14k iwasaki? I here they are very good.

Ti
11/30/2006, 07:25 PM
don't forget the hammy 14k