Giesemann megachrome 14500 coral 250 watt

weez1959 · 09-26-2007, 10:11 PM

yup, has to fit my fixture, I'm not ready to start messing with it :P

**charlie** · 09-26-2007, 10:15 PM

When I had my PC''s, I used the coralife bulbs also, so I know a tiny bit. I think that is probably the best option there. Are you happy with them??

weez1959 · 09-27-2007, 11:17 AM

I found replacements, what's the difference between:
420nm actinics
and
460 nm actinics?

***zhenya*** · 09-27-2007, 12:19 PM

Quote:

Originally Posted by weez1959

yup, has to fit my fixture, I'm not ready to start messing with it :P

Louise,

I use 130w Sunpaq bulbs for actinics on my anemone tank, I believe they are 44" long instead of the 36" like the 96 watters from Coralife. The color is not overly impressive but not too bad either. (I know, not very convincing...

)

I tried using Coralife in my 5' fixture but they are simply too short to cover entire length of the tank, although the color wasn't too bad( albeit pinkish looking to my eye).
With the megachromes I'm using VHO's for now but looking to install t5's in the future.

weez1959 · 09-27-2007, 09:24 PM

Are you saying that I don't have to put 96 watts in my fixture? mine are 34" square pin.....

**charlie** · 09-27-2007, 11:19 PM

Weez, I don't think he is saying that. I think most of that type fixture would be for the bulb that it came with.
That would almost be like saying you can run a 250w halide with a 175w ballast. It just doesn't happen. HTH

***zhenya*** · 09-28-2007, 12:20 AM

Quote:

Originally Posted by weez1959

Are you saying that I don't have to put 96 watts in my fixture? mine are 34" square pin.....

No, I am not saying that at all. I mearly stated that in a similar fixture, only 5' long instead of 4' I have to use 44" bulb wich is also square pin. You do have to put 96w bulb in your fixture but it doesn't really have to be Coralife. I personally like SunPaq and that's the point I was trying to make.

dougc · 10-02-2007, 09:24 PM

I am using the Geisemann Corals and I love them. BTW, Geisemann doesn't really label these bulbs with a K rating. My corals had much more pop that with the EVC's I was using before. There seems to be a bit more blue, but without sacrificing much PAR. The Corals have almost as much PAR as a lot of 10K bulbs. Growth has been pretty good under them, too.

**charlie** · 10-02-2007, 09:28 PM

Does anybody have a link to these bulbs????

09-26-2007, 10:11 PM	#41
weez1959 Contributing Member Join Date: Dec 2006 Location: Otterburn Park, Quebec Posts: 1,288	Re: Giesemann megachrome 14500 coral 250 watt yup, has to fit my fixture, I'm not ready to start messing with it :P __________________ Louise Click my avatar to see my tank, it's getting so perdy!! Give a man a fish and he eats for a day. Teach him how to fish and you get rid of him all weekend.

09-26-2007, 10:15 PM	#42
charlie Keeper of Willis Join Date: Jul 2004 Location: NW Montana Posts: 6,331	Re: Giesemann megachrome 14500 coral 250 watt When I had my PC''s, I used the coralife bulbs also, so I know a tiny bit. I think that is probably the best option there. Are you happy with them?? __________________ 400 Gallon Reef Log Rome wasn't built in a day---neither is a reef

09-27-2007, 11:17 AM	#43
weez1959 Contributing Member Join Date: Dec 2006 Location: Otterburn Park, Quebec Posts: 1,288	Re: Giesemann megachrome 14500 coral 250 watt I found replacements, what's the difference between: 420nm actinics and 460 nm actinics? __________________ Louise Click my avatar to see my tank, it's getting so perdy!! Give a man a fish and he eats for a day. Teach him how to fish and you get rid of him all weekend.

09-27-2007, 09:24 PM	#45
weez1959 Contributing Member Join Date: Dec 2006 Location: Otterburn Park, Quebec Posts: 1,288	Re: Giesemann megachrome 14500 coral 250 watt Are you saying that I don't have to put 96 watts in my fixture? mine are 34" square pin..... __________________ Louise Click my avatar to see my tank, it's getting so perdy!! Give a man a fish and he eats for a day. Teach him how to fish and you get rid of him all weekend.

09-27-2007, 11:19 PM	#46
charlie Keeper of Willis Join Date: Jul 2004 Location: NW Montana Posts: 6,331	Re: Giesemann megachrome 14500 coral 250 watt Weez, I don't think he is saying that. I think most of that type fixture would be for the bulb that it came with. That would almost be like saying you can run a 250w halide with a 175w ballast. It just doesn't happen. HTH __________________ 400 Gallon Reef Log Rome wasn't built in a day---neither is a reef

10-02-2007, 09:24 PM	#48
dougc Contributing Member Join Date: Jul 2000 Location: Cherry Hill, NJ Posts: 475	Re: Giesemann megachrome 14500 coral 250 watt I am using the Geisemann Corals and I love them. BTW, Geisemann doesn't really label these bulbs with a K rating. My corals had much more pop that with the EVC's I was using before. There seems to be a bit more blue, but without sacrificing much PAR. The Corals have almost as much PAR as a lot of 10K bulbs. Growth has been pretty good under them, too.

10-02-2007, 09:28 PM	#49
charlie Keeper of Willis Join Date: Jul 2004 Location: NW Montana Posts: 6,331	Re: Giesemann megachrome 14500 coral 250 watt Does anybody have a link to these bulbs???? __________________ 400 Gallon Reef Log Rome wasn't built in a day---neither is a reef

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