<a href=showthread.php?s=&postid=13509098#post13509098 target=_blank>Originally posted</a> by moremsgplease
I have heard that the depth of water will cause a bulb to loose its strength. Will a 150 watt 10000ºK HQI double ended metal halide bulb be efficient enough to keep a mixed reef in a tank that is 24" deep?
<a href=showthread.php?s=&postid=13408895#post13408895 target=_blank>Originally posted</a> by jblincoe
i have a 4' long 20"deep 18" wide aquarium, have been running a 400 watt single ended MH with xm 10000k bulb about 16" off the water the reflector is just your run of the mill reflector. have been able to keep xenia, hammer coral, shrooms, zoos, etc., but having a hard time with sps have lost a lot of frags. too much light, not enough, or something else? water params test ideal. Have 2 koralia 4s on opposite sides as well as a maxi1200 with rotator and my return, i think i have flow covered as far as i can tell. your help is very much appreciated.
<a href=showthread.php?s=&postid=13604242#post13604242 target=_blank>Originally posted</a> by cybrsufr
One thing to consider about XM 10K's is that they have been shown to produce the Strongest PAR value of any bulb out there. In simple terms, with a 18" deep tank you might need to raise the light or place corals lower in the tank and gradually over the course of several weeks raise them up as they are probably getting light shock and bleaching on you.
<a href=showthread.php?s=&postid=13771888#post13771888 target=_blank>Originally posted</a> by WhatIgot
black painted back panel, etc...