G
Guest
Why do they only have 6500k bulbs??
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OP
OP
Guest
that's what an iwasaki is, a 6500k bulb. It is a very water penetrating bulb w/ a high intensity, but lacks in color. It's a little yellowish, but can be bumped up in light temperature w/ a couple actinic VHO's.
OP
OP
Guest
I'm worried it would still look too yellow.
AggieBrandon
Guest
I have 2 250 watt Iwasaki's and 4 48" VHO actinics and my tank looks great...almost too blue.
Brandon
Brandon
OP
OP
Guest
I thought about that, but my hole reason for going to 250s from 175s is my canopy is too crowded with bulbs, I wanted to cut 2 of the VHO bulbs out.
I don't know if 2 VHO's will give enough of the blue.
I don't know if 2 VHO's will give enough of the blue.
Over my 75 gallon tank I ran two 175 watt 10,000K Ushios, two 110 watt URI VHO actinics, and one 250 watt Iwasaki. The Iwasaki cast such a yellow tint in the water I stopped running it. Yuck. I love the combo of 10,000 K's and actinics. 
~ Sherri
~ Sherri
Iwasakis are great bulbs for coral/SPS growth. Not too many bulbs even come close in PAR.
You may want to look into the XM 10k 250w. I'm running them now. They are more blue and retain the close to the PAR of the Iwasaki's. I dont think they are the miracle some thought they were when they first came out but still a good choice in the 250 watters.
Have you considered DE? I added two pendants to my set-up and am pretty impressed. Sanjay did an analysis of them recently too. Some outperform 400watters in terms of PAR and the bulbs last longer than SE. [Reportedly]
Hope that helps....
You may want to look into the XM 10k 250w. I'm running them now. They are more blue and retain the close to the PAR of the Iwasaki's. I dont think they are the miracle some thought they were when they first came out but still a good choice in the 250 watters.
Have you considered DE? I added two pendants to my set-up and am pretty impressed. Sanjay did an analysis of them recently too. Some outperform 400watters in terms of PAR and the bulbs last longer than SE. [Reportedly
]Hope that helps....
OP
OP
Guest
I've considered DE's but from everything I've looked at, they look like they cost a little more.
OP
OP
Guest
Anyone know of any pictures online of a tank using iwasaki's? Or somewhere local that uses them so I can see?
AggieBrandon
Guest
Here are some images of my tank....pardon the poor quality...just took them in a hurry:
This image is with 2 250 watt Iwasaki's and 4 48" VHO URI super actinic
This image is with 2 250 watt Iwasaki's and 2 48" VHO URI super actinic
And finally this image is of 2 250 watt Iwasaki's only no actinics
This image is with 2 250 watt Iwasaki's and 4 48" VHO URI super actinic
This image is with 2 250 watt Iwasaki's and 2 48" VHO URI super actinic
And finally this image is of 2 250 watt Iwasaki's only no actinics
AggieBrandon
Guest
You really have to see the tank in person...the camera really picks up the blue in the lights...maybe reflection from the blue background also. You can also see that I need to replace my metal halide bulbs....one side is way brighter than the other
