• Why not take a moment to introduce yourself to our members?

bar

Advanced Reefer
Rating - 0%
0   0   0
i just replace my 14000 k bulbs to iwasaki 250 6.5k
and its so ugly to much yellow
i'v put 3 actinic 03 (philips) 40 watt and thers a little change
but still the yellow green is all over the tank


what do i do now ???
 

MattM

Advanced Reefer
Rating - 0%
0   0   0
Depends on what's more important to you, appearance or coral growth.

The Iwasaki is very yellow, but it has the highest PAR rating of any currently available bulb.
 

Moty

Experienced Reefer
Rating - 0%
0   0   0
try to replace the 3 actinic 03 fluorescent with 4 X t5 or vho actinic i'm not sure if it will solve your problem but i'm sure it will make the color much whiter.
I'v 3 X 400w 6500k + 4 x t5 80W actinic and the color is too yellow for me so next week I going to replace one of the 6500k with a 400w 20000k radium and hope i'll get nice color and good coral growth.
 

O P Ing

Advanced Reefer
Rating - 0%
0   0   0
hi.
Matt's right. Sometimes, we just too concern with the way things appears to us, and forget one of the main reason is to keep them well. You can try to increase the actinic, as other suggest, and make a slight compromise. You will get used to it. Maybe in a few months, yellow tank will be a fad, instead of putting shallow corals in a light setting of 20 meters below.
 

Garry thomas

Advanced Reefer
Rating - 0%
0   0   0
Firstly i have just put 400 watter's 6500k iwasaki lamps over my tank, and i also went from 14000k's. i will admit that they are more yellow than previous, but what are we trying to achieve :?: good coral growth :?: Well thats exactlly what you'll have under 6500's. :lol: What do they get in nature..............thats right 6500k,the reason we go for higher kelvin lamps is purely for asthetics......yes our eyes, what we prefur to look at,i'v supplemented with 2x 140 watt o3's and 2x 58 acts, and am very pleased.
 

Attachments

  • gtj%20tank.jpg
    gtj%20tank.jpg
    143.5 KB · Views: 1,111

bar

Advanced Reefer
Rating - 0%
0   0   0
thank you all for the comment.

GT can you post more pic of your aquarium with the 14000 vs 6500 ?
i think ill try to put more 03, and i was told that the IWASAKI 250 6.5k
get more white after 90 hours of burning.

is it true ?
 

Mac1

Advanced Reefer
Rating - 0%
0   0   0
I run 2x250 Watt Iwaski's w/ 2x110 Watt VHO Actinic's over my 90 gallon, and I can tell you... When looking strictly at the light, with the hood opened, the combination produces a nice, white light from the halide's and a blue color from the actinic's (not that you'd hardly notice them...).
When I close the hood, and crouch down, looking up at the lights through the water and the glass... thing appear to have a yellowish cast...
What's that tell you?

Seriously, look at the lamps by themselves, Put a piece of white paper (look at the paper outside in daylight first), and tell me what color you think those bulbs are. Then put the piece of paper behind your tank, on the back or side wall's, so that you can view the paper through the glass and water at the same time.. what color does the paper appear to you now?

- Mac
 

bar

Advanced Reefer
Rating - 0%
0   0   0
You are right

do you mean that the water are yellow (protein) ?
why with 10000 or 14000 you cant see the yellow ?
 

Derek

Experienced Reefer
Rating - 0%
0   0   0
Also which ballast you use can make a difference. I run 400x Iwaskis and they appear to me to be much yellower on blueline eballasts than the PFO mv ballasts. You might try switching ballasts?

Derek
 

MattM

Advanced Reefer
Rating - 0%
0   0   0
bar":2o5kz6hc said:
do you mean that the water are yellow (protein) ?
why with 10000 or 14000 you cant see the yellow ?

It is possible that excess amine compounds (fish wastes) are yellowing your water. Try looking through the tank length-wise at a white card. If yellow, run carbon 2-3 days then dispose and repeat. After the excess yellow is removed, 2-3 days per month should keep it in check.

Make sure you use a good quality, porous, non-phosphate leaching carbon. Don't know what brands you have access to over there, but Two Little Fishies HydroCarbon is our favorite. Marineland Black Diamond, Kent, and Seachem are also good.

As far as the other bulbs, yes, excess blue light can correct for yellow water and make it appear clearer.
 

Mac1

Advanced Reefer
Rating - 0%
0   0   0
bar":3agj037x said:
why with 10000 or 14000 you cant see the yellow ?

Because those bulbs concentrate their spectrum in the blue range... they hardly give off any yellow. Therefore, there's no yellow light being emitted, for the water to reflect back at you.

- Mac
 

Sponsor Reefs

We're a FREE website, and we exist because of hobbyists like YOU who help us run this community.

Click here to sponsor $10:


Top