View Full Version : best 250W 10000k bulb
george1098
06/06/2006, 08:03 AM
Hi guys
I've gotta order a couple new 250W MH bulbs for my new 90 gal set up. I'm using Icecap ballasts, and i've decided to go with 10000k's, but i am still undecided what type of bulbs i would like to go with. I was thinking XM, but i've heard good things about reeflux aswell (which are a bit cheaper which is nicec). I keep a mixed reef and i want something that is good for growing everything from acropora to zoos.
what do you use, and what to you think i should use?
thanks guys
XM is white with a hint of yellow
Reeflux is white with a hint of pink
Both have good PAR, but the Reeflux unsupplemented will give you better colors than the XM unsupplemented... Apparently the pinkish hue can be "fixed" if you play around with the nipple position by turning the bulb while it's on...same applies for XM if you find it's too yellow...
samsfishnchips
06/06/2006, 09:51 AM
guys,
try to point out what type, DE or SE? as they are different,
in SE I can agree with Ceak, but with DE do not,
george1098,
what look you like, and do you have actinics?
for a white look xm with actinics is nice combo,
Reeflux is a nice bulb too,
what you have now?
sam
right I assumed it was SE...
Ironman
06/06/2006, 10:55 AM
In my 90 I have the 250W 10K XM's. I find them at times to have a very slight yellowish colour, but I supplement them with 2 VHO and 2 T-5 actinics and they look awesome.
XM 10K with actinics, makes the tank look awesome, great growth too.
yes supplemented XMs do look real nice, the downside is alot of bulbs, wattage and heat...
Harville
06/06/2006, 11:38 AM
My vote is for Aqualine B.
I'm not a fan of XM
PrangeWay
06/06/2006, 01:15 PM
XM has a big 420nm peak in it, so best if supplemented with t5's (which tend to have a 450nm peak in their various blue bulbs).
10k Reeflux has a big 450nm peak in it, so best if supplemented with the VHO Uri R (as they are a 420nm bulb).
That way you get the best of both worlds.
If you worry about the the XM bulb quality the Giesemann Marine Mogul bulb has the same spectral plot as the XM. I haven't found one that matches the 10k Reeeflux yet.
These are all SE of course. Hope it helps!
PW
chrismhaase
06/06/2006, 02:20 PM
So what then would be the best 250 bulb as I am in the same position. I have everything from acros to zoos also. Right now I have a 250w 20k XM bulb and everything seems to be doing great. Does anyone think there is a better bulb config than this?
chrismhaase -
If you like the blue look or don't want to supplement your MH with Actinics then the XM20K is a good choice, the Reeflux 12K is very similar and there's always the Radium 20K... Which ballast do you have?
chrismhaase
06/06/2006, 02:35 PM
Ceak- I also have a 110 vho 10k, and a 110vho actinic. Now what should I do?
SunnyX
06/06/2006, 02:45 PM
<a href=showthread.php?s=&postid=7508415#post7508415 target=_blank>Originally posted</a> by Ti
XM 10K with actinics, makes the tank look awesome, great growth too.
I agree, best combo I have used yet. Growth is great and colors are amazing. I would like to go with more blue and slow down growth soon so I will be going with the XM20K's in the near future.
chrismhaase
06/06/2006, 02:54 PM
So you are saying the 20k will yield slower growth than say a 10k?
20K bulbs have to be replaced more frequently. They don't hold their intensity the same as lower kelvin bulbs.
E-A-G-L-E-S
06/06/2006, 04:10 PM
<a href=showthread.php?s=&postid=7509841#post7509841 target=_blank>Originally posted</a> by chrismhaase
So you are saying the 20k will yield slower growth than say a 10k?
...yes
spongebobby
06/06/2006, 04:37 PM
Ushio 250w SE here. I'm glad I spent a little more and purchased them. Very nice color from these bulbs.
george1098
06/06/2006, 05:10 PM
sorry guys, i didn't specify, I'll be going with the SE bulbs, and run two 3' VHO strips to suppliment actinic. heres a link to my canopy construction so far. my Icecaps should be here friday an i'll get going on installing the morgul sockets.
i'd appreciate any feedback
http://reefcentral.com/forums/showthread.php?threadid=847805
I'm going to do the same thing in my 550g ( 120Lx36Wx30H) 3 side view tank 4 lum III's with 250 xm 10k's down the center and 2 sets of 2 48" 54 w t5's on each side for added par and color.
mg426
06/06/2006, 06:39 PM
XM 10k 250s with actinic for some blue is a great set up for me.
powdertang05
06/07/2006, 04:44 AM
i use XM's or ushio's both great for growth.
SunnyX
06/07/2006, 08:26 AM
<a href=showthread.php?s=&postid=7509841#post7509841 target=_blank>Originally posted</a> by chrismhaase
So you are saying the 20k will yield slower growth than say a 10k?
Slower growth but better coloration.
As much as I like the 10K XM's I prefer a bluer light source. I have used 20K xm's on an older tank and loved the color. It will drop my PAR in half but I think it is worth it simply for the increased coloration. Plus, I really do not like to frag so maybe slowing growth down is a good thing for me.
Anyway, here is what my current lighting looks like, Nice crisp white with a hint of yellow:
http://www.thesunnyreef.com/DSCN3156.jpg
george1098
06/07/2006, 11:56 AM
thats an awsome tank
what size is it?
SunnyX
06/07/2006, 12:05 PM
225gl Starphire(60Lx36Wx24H) Reef**Deltec AP851**Deltec KM500 Kalk Reactor**GEO Calcium Reactor**Sequence DART**TUNZE 6100 Stream**2X SEIO 1500**2X Lumenarc III** ARO PRO 250W**XM 10K SE**2x140W VHO URi Actinic**1x140W VHO Uri Daylight**
george1098
06/07/2006, 12:54 PM
oh it is the 225 gal, for some reason it looked smaller, must be the size of the fish and choral playing tricks on me
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