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Old 12/19/2017, 08:22 AM   #1201
biecacka
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What size halide do you have giving you 1900 par?

Corey


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Old 12/19/2017, 12:15 PM   #1202
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400W... approx 12" - 18" above the water... but the big factor is the reflector and using dual ended HQI... I used Cayman Sun


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Old 12/19/2017, 01:42 PM   #1203
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Gotcha.
I have the largest lumenarc reflectors. 22/22/9 or so. But run single end 400

Is that 12 inches above water the bottom of the reflector?

Corey


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Old 12/19/2017, 08:29 PM   #1204
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I have a thread with pictures and a PAR map

http://www.reefcentral.com/forums/sh...hlight=par+map

I need to find the post where I describe the setup


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Old 12/19/2017, 08:32 PM   #1205
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Here's the test setup.

http://www.reefcentral.com/forums/sh...hlight=par+map

And

http://www.reefcentral.com/forums/sh...r#post24597045

I got 1900 on a later test with new bulbs - but can't find the record


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Old 12/19/2017, 09:03 PM   #1206
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cool. thanks for the links. i think i will run 2 250 bulbs about 6-8in off the water and go from there.


corey


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Old 12/20/2017, 11:27 AM   #1207
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you can't put MH that close to the water in my experience. The IR radiation will cause a dramatic temperature rise and the water splash will cause salt crusting and require frequent cleaning.

Just my experience... even 12" was difficult to maintain.


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Old 12/24/2017, 06:03 PM   #1208
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So reflector 12 inches off water line at least. Then 24 inches to tank bottom, then height of reflector is 9. So 45 inches from the bottom of my tank?

I will look into that, my current fixture has been 8 inches from reflector to water line for a few years now, but your says I should move it to 12 at least? I will see if I can tinker with that.

Corey


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Old 12/24/2017, 06:21 PM   #1209
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8" is too close IME.


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Old 12/28/2017, 11:32 AM   #1210
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Do you think that I will get enoug par at the bottom of the tank using 250 watt bulbs? If I keep the reflector 12 inches off, then nine more inches to the bulb, so 21 inches from tank top to bulb then another 24 inches to the sand?
Or should I look into the 400 again?

Corey


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Old 12/28/2017, 04:21 PM   #1211
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Just remember that it is not all about par. MH's produce a full spectrum lighting that is impossible with LED's. I have a 180 with acropora all over my tank and am getting great growth and color. I'm using 3 Reef Brite mh/led pendants 13 inches above the top trim... 36 inches from the bottom of the tank.... no problem with growth or color. A standard 180g.


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Old 12/29/2017, 10:31 PM   #1212
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How is it 9" from the reflector to the bulb?


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Old 01/02/2018, 06:43 PM   #1213
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i meant from the bottom of my reflector to the top is about 9 inches, so the bulb actually sits about 7 inches from the bottom of the reflector.
I am sure i am overthinking this and in fact have already placed them about 9 inches off the water level.

corey


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Old 01/02/2018, 10:21 PM   #1214
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Hey everyone, my 250 w galaxy ballast just pooped out after 5 years of use and i currently have no lighting over my tank and i need to buy a new ballast ASAP, seems like most of the good nice brands of MH ballast don't exist anymore.. what's a really good brand of 250 w ballast out there to run a single ended 20K 250w Radium bulb? Seems like the only MH ballast that most stores sell/offer are Reef Brite and Luxcore??? Please help!


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Old 01/03/2018, 12:58 PM   #1215
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hamiltontechnology.com


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Old 01/10/2018, 09:13 PM   #1216
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Just checking in to say I fired up my Infiniti for the first time today with my new Pheonix and coral plus bulbs. What a thing of beauty. The shimmer is stunning, not that fake crap, but like a real piece of ocean. And the colour temp is great, a real crisp blue.


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Old 02/20/2018, 04:59 PM   #1217
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Does anybody know why Reeflux 400 watt 12K bulbs were discontinued?


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Old 02/23/2018, 06:28 AM   #1218
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Can anyone recommend a 250 watt se bulb that can work as a stand alone option on a standard electronic ballast without an hqi setting? I'm currently using reefbrite mh/led fixtures and I'd like to be able to achieve a blue/white color without using the xho's while the halides are on. The shimmer is so much better with only the halides running. I would be using the xho's for sunrise and sunset. I'm currently using reefbrite twin arc 14k bulbs and I find them to be too yellow.


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Back to halides and loving it!

Current Tank Info: 180g sps dom, 40b sump, Reeflo Dart, Apex, Aquamaxx co2, Reefbrite mh/led pendants w/14k twinarcs, Kore 5th doser, Tunze ATO, Ranco controlling 800 watt Finnex tube, 2 Maxpect Gyre 150XF with Ice Cap Controllers and battery backup, Bean Animal drain
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Old 02/27/2018, 01:14 PM   #1219
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Myself and others I know run 250w Radium on standard elec. ballast no problem.


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Current Tank Info: 40b. sps, Metal Halide,big skimmer,lots of flow, barebottom, natural seawater.
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Old 03/09/2018, 12:27 AM   #1220
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Quote:
Originally Posted by Syntax1325 View Post
Can anyone recommend a 250 watt se bulb that can work as a stand alone option on a standard electronic ballast without an hqi setting? I'm currently using reefbrite mh/led fixtures and I'd like to be able to achieve a blue/white color without using the xho's while the halides are on. The shimmer is so much better with only the halides running. I would be using the xho's for sunrise and sunset. I'm currently using reefbrite twin arc 14k bulbs and I find them to be too yellow.
Hamilton 20k or 14k.


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Old 03/09/2018, 06:12 AM   #1221
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Thank you stancfii


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Back to halides and loving it!

Current Tank Info: 180g sps dom, 40b sump, Reeflo Dart, Apex, Aquamaxx co2, Reefbrite mh/led pendants w/14k twinarcs, Kore 5th doser, Tunze ATO, Ranco controlling 800 watt Finnex tube, 2 Maxpect Gyre 150XF with Ice Cap Controllers and battery backup, Bean Animal drain
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Old 03/09/2018, 07:28 AM   #1222
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Quote:
Originally Posted by stancfii View Post
Hamilton 20k or 14k.
I second the Hamilton. I use a 20k and I really like the way it looks by itself. I also run two blue+ T5 which are a little too blue for me but I need the par.

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Old 03/17/2018, 04:28 PM   #1223
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Thank you stancfii


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You’re welcome. I just switched from Radiums to Hamilton 20k and love them. There’s a guy who made a post on that other forum comparing the “new” 250w Hamilton 20k (they changed the formula a year or so ago) to the Radium 250w via spectrometer. It is almost identical, and has the same PAR for less wattage and less cost. They are a hint more white than the Radiums (which I prefer). Corals seem to be loving them as well.


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Old 03/17/2018, 04:53 PM   #1224
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Originally Posted by stancfii View Post
You’re welcome. I just switched from Radiums to Hamilton 20k and love them. There’s a guy who made a post on that other forum comparing the “new” 250w Hamilton 20k (they changed the formula a year or so ago) to the Radium 250w via spectrometer. It is almost identical, and has the same PAR for less wattage and less cost. They are a hint more white than the Radiums (which I prefer). Corals seem to be loving them as well.


Are you using a standard electric ballast? I don’t have an hqi setting.


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Back to halides and loving it!

Current Tank Info: 180g sps dom, 40b sump, Reeflo Dart, Apex, Aquamaxx co2, Reefbrite mh/led pendants w/14k twinarcs, Kore 5th doser, Tunze ATO, Ranco controlling 800 watt Finnex tube, 2 Maxpect Gyre 150XF with Ice Cap Controllers and battery backup, Bean Animal drain
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Old 03/21/2018, 08:04 AM   #1225
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Originally Posted by Syntax1325 View Post
Are you using a standard electric ballast? I don’t have an hqi setting.


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I’m using a select-a-watt ballast. With the Radiums I would run it on HQI setting. With the Hamilton’s, I would use the regular 250w setting. The data I’ve seen looks like the Hammy on 250w now puts out as much PAR on the same spectrum as the Radium on 250HQI.


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