do 20k slow growth that much?

[keith sprague]

im now useing 14k but wanna go to 20k.i hear it slows growth.is it true if so is it substantial?

 

[rodcpierce]

there is alot of people out there with stuff under 20k halides with very well and nice growth.

 

[Av8bluewater]

Prolly depends on the bulb but yes for me going to the 20k XM 250w growth came to a crawl.

 

[Mattik]

You could use the phoenix 14K....I just put one in my 250W lamp and I like the color far better than my old 20K XM bulb

 

[keith sprague]

i just put in 20k XM 150w took them out it seemed way to blue for me.thats not the factor though i need moderate growth .not to fast not to slow. thanx for the input

 

[keith sprague]

You could use the phoenix 14K....I just put one in my 250W lamp and I like the color far better than my old 20K XM bulb

maby ill try the XM 15k might have luck w/ them

 

[keywestcoralboy]

i dont think the light spectrum has as much to do with growth as water quality, i run 20k hallides(3) and my growth is pretty quick,, and yes i had a 10k 250w before

 

[sedorusc]

try the radium. people report good growth with them.

 

[rodcpierce]

ide personally go with pheonix 14k bulbs. When I was running them before my t5's, i didnt even need any supplemental lighting. The color was perfect! Give em a shot.

 

[nikon187]

20k reeflux if you have an electronic ballast. A nice crisp bright white.

 

[VoodooMach]

The double ended XMs are a joke when it comes to PAR and spectrum.. the SEs are a very different animal, but even then they don't boast that high of PAR.

 

[oldreefer76]

20k reeflux if you have an electronic ballast. A nice crisp bright white.

+1

 

[MaLi]

I am running a 20k Plusrite now as a replacement for a 15k. I have better growth on my SPS, but the softys are affected. I have a few acros and slimmers and polyps extension is really nice. My Kenya tree used to double in height, now is just extending.

hope it helps,
Marian

 

[mypepper]

Here's my growth, which I' am using two XM 20k SE bulbs with the addition of 2 55 watt power PC's.

My softies grow like weeds and my few SPS's grow on the slow side.

As for the color, I love the blue ripple effect in my tank.

Randy

 

[joshsamsj]

my growth slowed with the 20ks but the colors really pop now