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cstires
07/24/2017, 09:51 AM
I'm having a tank built that will either be 30" or 36" deep. I want to light the tank with metal halide and reefbrite LEDs for the actinic.

What fixtures are you all using to get the proper light spread for those widths?

Thanks in advance for your help.


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marinelife
07/24/2017, 09:55 AM
My tank is 30" deep but I am using LEDs, cheap Mars Aqua ones. SPS grow under them and have great color.

cstires
07/24/2017, 09:57 AM
My tank is 30" deep but I am using LEDs, cheap Mars Aqua ones. SPS grow under them and have great color.



I've had LEDs in the past and just never was pleased with the growth rates. I had Radions. This was probably 5 years ago or so though.

I'm not totally against them, but I really like the look and growth rates I had gotten from my MH's.


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marinelife
07/24/2017, 10:06 AM
I ran MHs years ago with out issue. Radions will work great for you. I would say 400 Watt is what you will want

d-man
07/24/2017, 10:49 AM
I'm using same fixtures at 43" deep tanks. Again great growth and cheap

My tank is 30" deep but I am using LEDs, cheap Mars Aqua ones. SPS grow under them and have great color.

gavinbree
07/24/2017, 10:53 AM
Have LEDs on my 27 cube, have no issues with growth or colour but getting the right power settings can be difficult with a deep tank, top will be very bright, bottom very dull. That bring said mine are currently at 15% white and 80% blue and will nuke new corals if I'm not careful in where I place them.

Also worth mentioning that 400watt metal halides will put out a crap ton of heat so hope you have a decent cooling system in place.

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cstires
07/24/2017, 11:07 AM
When I said deep, I meant width. The height of the tank will be 24". Just wanted to make that clear so we were all on the same page.


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cstires
07/24/2017, 11:09 AM
How is the ease of setup on those Mars units? Are they similar to the EcoTech Radions?

I do love the fact that LEDs don't produce heat like MH's do. I just want to make sure they'll be able to give the spread I need and provide the correct light needed to make SPS grow like my MH's did.


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gavinbree
07/24/2017, 11:20 AM
Don't have the Mars unit but something similar, very easy to set up with remote, bit of pain in the *** with the control knob on the light unit.

Pic of the tank to give you idea of the light spread, excuse the glass needs cleaning.https://uploads.tapatalk-cdn.com/20170724/506947540701b891b41b17218499dff2.jpg

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cstires
07/24/2017, 01:37 PM
Don't have the Mars unit but something similar, very easy to set up with remote, bit of pain in the *** with the control knob on the light unit.

Pic of the tank to give you idea of the light spread, excuse the glass needs cleaning.https://uploads.tapatalk-cdn.com/20170724/506947540701b891b41b17218499dff2.jpg

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And what are the dimensions on your tank?


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gavinbree
07/24/2017, 01:52 PM
And what are the dimensions on your tank?


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chris o
07/24/2017, 04:13 PM
I am currently working on a build that is 72x45 deep x 30 tall and went with 6 radions and my tests have come out good so far. I will throw in that you should always go with the bigger size ��.

Chris

DrDNA
07/24/2017, 04:37 PM
Tank is 36" deep. Have four aquatic life halo led fixtures , two 165w BML led strips, and two 150w 6500k outdoor rated led fixtures (They were like $75 on Amazon). Here pics without the 6500k fixtures:https://uploads.tapatalk-cdn.com/20170724/152cd66e43733bc3d1743aed334ed01f.jpghttps://uploads.tapatalk-cdn.com/20170724/c9b2b4e5f5122460645787094981d321.jpg

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cstires
07/24/2017, 04:44 PM
I am currently working on a build that is 72x45 deep x 30 tall and went with 6 radions and my tests have come out good so far. I will throw in that you should always go with the bigger size *€.

Chris



How did you space them out? My tank is looking to be 48x36x24. I'm wondering if 3 would be enough to light it?


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crimsonblue
07/24/2017, 08:19 PM
Is your tank bare bottom? Or just a dusting of a sand bed?

cstires
07/24/2017, 08:20 PM
Is your tank bare bottom? Or just a dusting of a sand bed?



It's not up yet, but I think I'm going to go with sand this time. It just looks more natural to me.


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subbedout
07/25/2017, 05:20 PM
My tank is 30" deep but I am using LEDs, cheap Mars Aqua ones. SPS grow under them and have great color.I have very similar lights. What are you setting the blues and whites at, and for how long? Growing SPS with those is impressive!

marinelife
07/25/2017, 05:51 PM
I have very similar lights. What are you setting the blues and whites at, and for how long? Growing SPS with those is impressive!

100% with great par readings

zaireguy
07/25/2017, 09:53 PM
Not to high jack the thread but i have a 8 ft 300 gallon would i need 4 or 5 of the mars/evergrow? Trying to decide which ones to use for lps and spa
thanks

m0nkie
07/25/2017, 10:11 PM
I have the ATI hybrid 8 bulbs for my 30" deep tank. Works great. I have the T5 on 70% and LED on 30%.

Water line ~450 - 500 par
Mid tank ~300
Sandbed ~180

cstires
07/26/2017, 05:16 AM
I have the ATI hybrid 8 bulbs for my 30" deep tank. Works great. I have the T5 on 70% and LED on 30%.

Water line ~450 - 500 par
Mid tank ~300
Sandbed ~180



That's an interesting idea actually. How's your sps growth?


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garrettm
07/26/2017, 07:22 AM
I'm running 2 400w Radiums over a 60x36x24 and liking it a lot. Actually got them from someone here on RC :)

cstires
07/26/2017, 08:28 AM
I'm running 2 400w Radiums over a 60x36x24 and liking it a lot. Actually got them from someone here on RC :)



What fixture/reflector are you using? How's the spread?

Are you having any issues with heat?


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garrettm
07/27/2017, 10:12 AM
I am running Luxcore 250/400w ballasts with mogul halide bulbs on lumen bright large reflectors. The actual bulb is about 14" off the top of the water the the spread is really good.

I have the tank in the garage and live in southern California so the heat is somewhat of an issue for me but i have a chiller to offset If you are keeping the tank inside and running a fan across the top between the water and the halide you shouldn't have any problems. It just depends on a lot of factors.

<a href="http://s1219.photobucket.com/user/gmitch72/media/0D396D3A-ECB4-4FF7-8900-A48ADA6EFD07.jpg.html" target="_blank"><img src="http://i1219.photobucket.com/albums/dd427/gmitch72/0D396D3A-ECB4-4FF7-8900-A48ADA6EFD07.jpg" border="0" alt=" photo 0D396D3A-ECB4-4FF7-8900-A48ADA6EFD07.jpg"/></a>

cstires
07/27/2017, 05:38 PM
I am running Luxcore 250/400w ballasts with mogul halide bulbs on lumen bright large reflectors. The actual bulb is about 14" off the top of the water the the spread is really good.



I have the tank in the garage and live in southern California so the heat is somewhat of an issue for me but i have a chiller to offset If you are keeping the tank inside and running a fan across the top between the water and the halide you shouldn't have any problems. It just depends on a lot of factors.



<a href="http://s1219.photobucket.com/user/gmitch72/media/0D396D3A-ECB4-4FF7-8900-A48ADA6EFD07.jpg.html" target="_blank"><img src="http://i1219.photobucket.com/albums/dd427/gmitch72/0D396D3A-ECB4-4FF7-8900-A48ADA6EFD07.jpg" border="0" alt=" photo 0D396D3A-ECB4-4FF7-8900-A48ADA6EFD07.jpg"/></a>



Did you build the rack that holds the reflectors?


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garrettm
07/28/2017, 06:47 AM
Yes, I used a company called Esto Connectors for the aluminum tubing and connectors. It wasn't that hard to build either. Some measuring, cut off saw with an aluminum cutting blade and you are set.

<a href="http://s1219.photobucket.com/user/gmitch72/media/54a8370e-3c75-4fbf-b690-eff66d7e3943.png.html" target="_blank"><img src="http://i1219.photobucket.com/albums/dd427/gmitch72/54a8370e-3c75-4fbf-b690-eff66d7e3943.png" border="0" alt=" photo 54a8370e-3c75-4fbf-b690-eff66d7e3943.png"/></a>

m0nkie
07/30/2017, 10:09 PM
That's an interesting idea actually. How's your sps growth?


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Everything grows. Sandbed level is a little low for sps. But my clams, hammers, mushroom are all fine down there

SNTLewis
08/07/2017, 07:57 PM
I run a giesmann spectra 48 inch on my 200dd. Trifecta arrangement with 400w 20k radiums, t5, and 26 3w leds.

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cstires
08/07/2017, 08:06 PM
I run a giesmann spectra 48 inch on my 200dd. Trifecta arrangement with 400w 20k radiums, t5, and 26 3w leds.

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The LEDs didn't come with the fixture, right?


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gavinbree
08/08/2017, 02:16 AM
Not to high jack the thread but i have a 8 ft 300 gallon would i need 4 or 5 of the mars/evergrow? Trying to decide which ones to use for lps and spa
thanks8 foot doesn't really give us and idea of depth and width, but in theory if you throw enough LEDs at it you'll be fine.

Best way is to measure with a Par meter though.

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SNTLewis
08/08/2017, 05:06 AM
Giesmann spectra is mh/t5. Giesmann has others that are (or include) leds

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cstires
08/08/2017, 06:33 AM
Giesmann spectra is mh/t5. Giesmann has others that are (or include) leds

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Ok I saw you said you had the spectra as well as T5's and LEDs so I was curious if it came with them or not.

So with that single fixture you're lighting your entire 36" deep tank?


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SNTLewis
08/08/2017, 06:40 AM
2x400mh, 4x54w t5, 75w of leds 200dd is only 27 deep, sorry missed that. However I can grow sps at the bottom

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shaginwagon13
09/10/2017, 06:37 PM
Tagging along...... trying to decide what to do with my setup right now also and its 36" deep as well.

mike810
09/16/2017, 02:38 AM
Are you dead set on MH? I have a 8x3x2H tank and use two 48" ATI hybrid T5 8 bulbs. My T5 bulbs and leds are run at 100%. Good growth and good color on SPS. My rock scape is pretty low to the tank, maybe only half way up the tank and I have no problem growing and coloring up sps. My build thread is in this forum also if you want to see my tank. Last page has pics of the corals and fts.

shaginwagon13
09/16/2017, 08:33 AM
Are you dead set on MH?

Not really. I did the calculation this week. For my tank, I would need to run four to five 400w ballasts. Not taking into account any T5's or running the chiller, the cost for hydro alone assuming I run the halides for 8-10 hours a day would be approx. $3.25 a day

Factoring in that you need to change the bulbs around once every 5-6 months, that's another grand at
least over the course of the year.

Running he numbers, that's anywhere from $2,000 to $2,200 a year just on the electricity costs and bulb replacements and does not include any T5 costs or the cost to run the chiller as halides produce a lot of heat.

For that alone I'm thinking about LED. But I want all sps and I would need 5-6 LED units for this.