Tropical Fish Keeping - Aquarium fish care and resources

Tropical Fish Keeping - Aquarium fish care and resources (http://www.tropicalfishkeeping.com/)
-   Beginner Planted Aquarium (http://www.tropicalfishkeeping.com/beginner-planted-aquarium/)
-   -   Do all bulbs with the 6500k rating make your tanks look green? (http://www.tropicalfishkeeping.com/beginner-planted-aquarium/do-all-bulbs-6500k-rating-make-95749/)

jhays79 03-10-2012 01:23 PM

Do all bulbs with the 6500k rating make your tanks look green?
 
Or is just me? I actually bought a dual fixture T5 high output setup for my tank, and took it off because it gave the tank a greenish yellowish look. I just bought a Life Glo2 20 w 6500k bulb, threw that in my original fixture I had, and it has the same look to it? I have the stock bulb that came with my hood that's 8000k and it has such a nicer look, not nearly as green looking. Do I just have to sacrifice the lighting look and stick with the green toned bulbs for the plants? Any other options?

redchigh 03-10-2012 01:59 PM

6500k bulbs give out a bluish-white light, not green.

8000k should be even bluer though, since the lower colors (4500k and lower) are yellow-orangeish white.

Is it possible you have tannins in your water?(since blue +yellow = green)
Or a mild case of 'green water' algae?

jhays79 03-10-2012 02:01 PM

Quote:

Originally Posted by redchigh (Post 1009155)
6500k bulbs give out a bluish-white light, not green.

8000k should be even bluer though, since the lower colors (4500k and lower) are yellow-orangeish white.

Is it possible you have tannins in your water?(since blue +yellow = green)
Or a mild case of 'green water' algae?

I seem to only notice it with the 6500k bulbs? I don't have any driftwood or anything in my tank to produce tannins. I'm going to be doing a big water change tonight since I'm long over due for the week, and I'll see what I can come up with.

redchigh 03-10-2012 02:11 PM

Alrighty, let us know. If you have a lot of plants, they could be reflecting green light, and it could be more noticeable with 6500k....

Quantum 03-10-2012 02:19 PM

If the 8000K is a 'plant' bulb then yes, the 6500K will almost certainly have more green, I know the Life Glo emits a good amount of green. The difference at first will seem quite drastic, but you will get used to it over time.

Mikaila31 03-10-2012 03:02 PM

All 6500K bulbs look green to me too. I use 8000K on my show tanks. My favorite bulbs are GEs Salt and freshwater 9325K bulbs.

jhays79 03-10-2012 03:04 PM

I have a fair amount of plants, 1 amazon sword, 1 anubias, a few vals, ancharis and hornwort.

One more question, is there really that much of a difference between the 8000k 17 watt bulb that came with my hood, and the 20 watt 6500k Life Glo bulb?

Mikaila31 03-10-2012 03:19 PM

as far as plant growing goes no. It depends on the color spectrum more then the kelvin temp. The GE bulbs I recommened above are really good for plants.

Ashcan Bill 03-10-2012 03:20 PM

It's not just you. I've always found lamps in the 6500 range to be greenish-yellow as well. A lot of people seem to like that type of color. I don't.

I have one small tank that I'm currently using an Aqua-Glo in. The Aqua-Glo is rated at 18,000K. It produces a very subdued bluish violet color that I personally prefer.

Different strokes.

As far as plants, I'm having good results with the Aqua-Glo in the small aquarium. I've tried one in a deeper tank with less favorable results. Sometimes you just don't know until you try. But eventually you do build up a nice collection of tubes. :grin:

MinaMinaMina 03-10-2012 05:01 PM

I have the same problem. For me, its a combination of two 6500K bulbs and blackwater that make my tank look lime green. :shake:

Does anyone know of a bulb that will grow plants nicely, but has more yellow/red looking light?
I have "Jungle Val" and a double bulb fixture. I can't afford to blow any more money on bulbs that won't give me the look I want AND be enough to grow my Vals. Is having enough light to grow the Vals AND have blackwater that actually looks like blackwater... is it just a dream?!


All times are GMT -5. The time now is 05:26 AM.

Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0 PL2