View Full Version : Is this a good idea for a MH pendant...

07/08/2010, 01:16 PM
Over a 30x30x18 tank? I am looking at these two pendants:

I know I will be going 250w, but I'm not sure if I want to run a 14k or 20k bulb. I want amazing colors and am going to be sps dominant, I want the nice blue I see from most TOTM pics and the accompanying colors, I don't think I will have room on my light bar to run any t5's so I am trying to accomplish this with one MH.

Also, could someone help me out with the ballasts? I know what they do, but where would it be placed?

Open to suggestions on anything!

I also just found this:

This one would have more coverage, but I can't see the reflectors in it which is kind of a bummer.

07/08/2010, 09:34 PM

Actually, I am going to go with this one :)

07/09/2010, 10:13 AM
You really can't go wrong with any of them, all the LumenXXX's are good reflectors. On a MH only lighting setup, I like to use the Reeflux or Coralvue 12 or 14000K, they are a bit bluer then the competition and don't cost an arm n a leg.

07/09/2010, 11:51 AM
Do you need 2 halides over a 30x30 tank? If you get the right reflector like a lumenbright or something, couldn't you get away with just one? If you're worried about intensity, maybe a 400 watt?

Just a thought. I'm not suggesting it, just asking what you all think.

07/09/2010, 12:12 PM
for 30x30 i would get a lumenarc reflector and run either a 250w or lift it higher and run a 400w.

07/12/2010, 09:02 PM
Wow, I guess I responded to more threads than I thought. I never saw you guys' responses =/

Ok, this is pretty much the MH set up I am going with:
Reflector- http://www.vividaquariums.com/10Expand.asp?ProductCode=04-2300-10

What is the difference of the two below? They are the same thing as the one from vivid, except the below ones have the black housing for aesthetics, but the vivid one has a smoother reflector.

I am pretty set on this type of reflector.

http://www.vividaquariums.com/10Expand.asp?ProductCode=04-2502-10 (first listed one)

I could have sworn I saw some of the galaxy's that were pule start. But I can't seem to find that site again. On that note, which is better HQI or pulse start, magnetic, or electronic? (Think I have those right, maybe not)

Going with a 250w 20k, but don't know who makes the good bulbs.

I have seen Ushio a lot, and XM and Reeflux. But I want opinions from people I can talk to.

Thanks everyone :D

Do you need 2 halides over a 30x30 tank? If you get the right reflector like a lumenbright or something, couldn't you get away with just one? If you're worried about intensity, maybe a 400 watt?

Just a thought. I'm not suggesting it, just asking what you all think.

Most reflectors I see are at least 10" in length if not width as well. So, that would be a very, very tight fit. The one I plan on getting is 14.5x14.5 so it should be an almost perfect coverage.

07/13/2010, 09:13 PM
I would go with a Hamilton Cayman Sun 250 watt reflector over a Lumen Max 3.

I have the Cayman Sun 250 watt HQI Pendant and tested the PAR versus Lumen Max 3 with an Apogee Meter and the Cayman Sun was about 1.4 times the PAR as the LM3 - same ballast, same bulb. Plus, it has LED lights and a suspension kit built in.

As for ballasts, I would recommend going with an M80 HQI especially if you do choose to go with a double ended bulb or a Radium Mogul Based bulb.

Magnetic ballasts are virtually bullet proof.

I have been running the same magnetic ballasts for about 7 years now, while I have buried 3 MH Electronic ballasts in the same time.

07/13/2010, 10:42 PM
grigsy!!!!! Why did you show me this, I had my reflector set and ready to order (soonish) and then I see this...

Has moonlights... suspension kit... GAH!! lol

The only thing I don't like is the DE set up.

The reflector I was going to use is this one:

I happened to stumble across a thread where PAR readings were done on all of the Lumen fixtures as well as area coverage, etc. and this one seemed to be perfect for my setup.

EDIT: And now I found this: http://www.hamiltontechnology.com/item/Cayman-Sun-Mogul-Based-Reflector-with-LED-lights-2007!

Choices, choices, choices!!!!
However, I am seriously considering the one you posted!

07/14/2010, 08:44 AM
ghostcon you have a PM