Anyone using 6500k bulbs on a large reef.

[elvictre]

I am thinking of swithing to 6500k bulbs for my tank and I was wondering what everyone thinks of them. I do use actinic supliments and I have 2 solatubes over the tank.

If anyone has pics or a link I would appreciate it.

Thanks

 

[waynem]

I have a backup 250w and 400w 6500k bulb, i use for a day or two when / if any of the normal lights fail.

The colour is just not very nice on my tank. I also doubt these bulbs give off the sort light your corals need.

 

[elvictre]

Thanks. I read they are grow bulbs for SPS. I was wondering how much better growth you would get.

 

[tomasz]

I have couple T5s 6500K on my frag tank, but not on my display. That is one ugly light.

 

[NanoReefWanabe]

6500 is supposed to be the closest colour rendering to natural sunlight...i dont see why there would be any problems using it...corals may brown a bit or look just plain ugly...but i have seen several people with a 6 or 8 bulb HOT5 fixture who incorporate a 65ooK bulb into the mix...

 

[elvictre]

Thanks. I went with XM 10k's with my solatubes it should look pretty close to natural. I hope the actinic VHO's bring in some coloration to go with the growth.

Thanks Again

 

[pistol]

I am a fan of Iwasaki 65K's. Last year I switched to reflux 12Ks. The 12K's look nice, but the growth is noticably slower and the 65k's remind me of what a reef looks like when I dive.

I am going back to 65K's next month.

 

[serpentman]

I have run them. Mad growth but the tank looked like someone urinated in it.

 

[Douglas LEHMAN]

Hello
I have a Iwasaki 65K powered by a M 37 ballast with 2x3"VHO's on a 40 gallon frag tank. The corals hold their color, and the growth is outstanding.