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Old 01-11-2012, 04:35 PM   #1 (permalink)
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Default Best Lighting for a 40b?

I was wondering what the best lighting
for a 40b would be. Waiting for the stand I ordered
so it's not up yet. The lights are next. I've looked at so
many online! I'll be using some flame moss I have in another
tank and windlov fern. I'd also like to put in some dwarf lillies and tiger
lotus, crypts(not sure which ones yet), melon sword, anubias coffefolia and
I'm looking for something low growing for the front. And all that can change with
what will grow best.
Any ideas on lighting? I have a coralife 4x67k on my 75g, I'm figuring something
like that might be too much for this tank.
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Old 01-11-2012, 07:07 PM   #2 (permalink)
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Default Re: Best Lighting for a 40b?

For low to medium light, two T5 NO tubes or one T5 HO tube should do it. I run 2 NO tubes over my 40 gallon, suspended about 4" above the top, and get about 45-50 umol of PAR at the substrate, which puts me in medium light by most definitions.

Surprisingly, I get more PAR when I use 4100K Phillips daylight tubes from Home Depot than with 6700K Coralife tubes. The Coralife tubes only give about 30 PAR, cost more than twice as much as the Phillips, AND only last about 6 months! So sometimes cheap and easy is better.

I also have very good results with spiral compact fluorescents mounted vertically over a 20 gallon tall that is the same height as the 40b. In this case two 26w 6500K Sylvania spiral CFs produce about 60 umol of PAR at the substrate. These also come from Home Depot, and cost about $6 each.
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Old 01-12-2012, 03:56 AM   #3 (permalink)
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Default Re: Best Lighting for a 40b?

I've read about people using the bulbs from Home depot. In my fixture I have now
it has 4 pins in a line, I haven't seen anything to fit yet.
Thanks for the info, I'll be looking around for a fixture that will take the cheaper bulbs for sure!
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Old 01-12-2012, 05:45 AM   #4 (permalink)
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Default

I like to refer to Hoppy's chart from PT forums. Search "PAR vs Distance" and I am certain it would answer most if not all (basic) questions.

Cree LED's, DIY LED's and dimmable flourecents (such as ATI, geissman components Plantbrain uses) etc., is another topic.


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Old 01-12-2012, 07:07 AM   #5 (permalink)
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Default Re: Best Lighting for a 40b?

Hoppy's chart is just about the best thing out there. It doesn't cover spiral CFs or LEDs. From my experience, spiral CFs mounted vertically perform similarly to T5 HO tubes.
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Old 01-12-2012, 10:47 AM   #6 (permalink)
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Default Re: Best Lighting for a 40b?

Thanks Thefisherman, I printed that out. I'll check out the website tonight.
Michael, there is so much to learn about planted tanks! Once I get this right I'm
going to redo my 75g. Gee, years ago I let the tank run for 2 weeks and stuck
my fish in, some rock and a fake plant or two, good to go. My fish lived for years!
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Old 01-12-2012, 11:02 AM   #7 (permalink)
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Default Re: Best Lighting for a 40b?

Quote:
Originally Posted by Michael View Post
Hoppy's chart is just about the best thing out there. It doesn't cover spiral CFs or LEDs. From my experience, spiral CFs mounted vertically perform similarly to T5 HO tubes.
can you post up a pic of how your lights are setup..like the fixture you used
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Old 01-12-2012, 12:22 PM   #8 (permalink)
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Default Re: Best Lighting for a 40b?

My camera is down, but when I have it back I'll post some photos in my journal.

Basically, I have a metal conduit bar over the tank with two clamp light fixtures suspended from it. The fixtures are hanging from their cords with the clamps removed. I used the 8" diameter fixtures with hemispherical aluminum shades--they were about $9 each from Hopeless Depot.
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Old 01-13-2012, 06:52 AM   #9 (permalink)
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Default Re: Best Lighting for a 40b?

Quote:
Originally Posted by Michael View Post
My camera is down, but when I have it back I'll post some photos in my journal.

Basically, I have a metal conduit bar over the tank with two clamp light fixtures suspended from it. The fixtures are hanging from their cords with the clamps removed. I used the 8" diameter fixtures with hemispherical aluminum shades--they were about $9 each from Hopeless Depot.
lol Hopeless Depot..I was thinking about hanging mine like that..pendent style
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Old 01-23-2012, 11:54 AM   #10 (permalink)
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Default Re: Best Lighting for a 40b?

I also have very good results with spiral compact fluorescents mounted vertically over a 20 gallon tall that is the same height as the 40b. In this case two 26w 6500K Sylvania spiral CFs produce about 60 umol of PAR at the substrate. These also come from Home Depot, and cost about $6 each.[/QUOTE]

hi michael, i'm planning on getting something about 20" tall--55 gallon or so, whatever shows up on the local craigslist--and was wondering whether i could use cfl's, for a total of 2-3 wpg. that's working really well for me on other tanks, it would be great to be able to stick with them. probably should go with t5's, but just have to ask. thanks.
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