Low-Light Fixture Options For Common Tank Sizes - The Planted Tank Forum

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post #1 of 49 (permalink) Old 07-18-2013, 05:58 PM Thread Starter
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Lightbulb Low-Light Fixture Options For Common Tank Sizes

One of the questions I commonly get is, "Which fixture should I get for low light?"

So let's make a list of fixtures that will provide low light in some common aquarium sizes.

2.5gal
  • 9-10watt Daylight CFL in a dome fixture or desk lamp
  • Small screw-in LEDs in a dome fixture, desk lamp, gooseneck
  • 12" Finnex Fugeray
  • 12" light strip - usually available from Petco
  • 12" BeamsWork LED fixtures

5.5gal
  • 16" Finnex Fugeray
  • One or two 10-12watt Daylight CFL in a dome fixtures or desk lamps
  • Small screw-in LEDs in a dome fixture, desk lamp, gooseneck
  • 18" BeamsWork/Marineland LED fixtures (there'll be a bit of overhang)

10gal
  • 20" Finnex Fugeray
  • 18" Current Satellite Freshwater LED+
  • One or two 12-15watt Daylight CFL in a dome fixtures or desk lamps or even a single 26w bulb
  • 18" BeamsWork/Marineland LED fixtures
  • 18" Fluval Ultra Bright LED Strip Light
  • 20" Aqueon Modular LED

15gal Long
  • 24" Current Satellite Freshwater LED+
  • 24" Finnex Fugeray
  • 24" Single T5NO Fixture

20gal Long
  • 24" Current Satellite Freshwater LED+
  • 24" BeamsWork/Marineland LED
  • 30" Finnex Fugeray
  • 30" Aqueon Modular LED
  • 24" Fluval Aqualife & Plant LED
  • 30" Dual T5NO - though, it may need to be raised a bit. A single bulb T5NO fixture is perfect.

20gal Tall
  • 24" Current Satellite Freshwater LED+
  • 24" Finnex Fugeray
  • 24" Dual T5NO Fixture

29gal
  • 30" Finnex Fugeray
  • 30" Dual T5NO

40B
  • 36" Current Satellite Freshwater LED+

55gal
  • 48" Current Satellite Freshwater LED+

75gal
Make suggestions

This is by no means an exhaustive list and will be updated as people make suggestions. Should only serve as a starting point for those new to the hobby or for those who aren't sure where to begin.

Last edited by somewhatshocked; 08-04-2013 at 10:29 PM. Reason: updates
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post #2 of 49 (permalink) Old 07-18-2013, 09:34 PM
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Thank you for the thread. I have a lot of ideas of future tanks going around in my head and I'm figuring out what I need for them (cost of running,time). This light guide will help me out a lot.

18g (Red Cherry Neo Shrimp | Malawa Shrimp)
7.5g (Yellow Neo Shrimp)
3.2g (Pumpkin Neo Shrimp)
2g (Snails)
11.4g (new home soon for the Pumpkin Neos)
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post #3 of 49 (permalink) Old 07-18-2013, 10:07 PM
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Been running a Current Satellite LED+ on my 40B without any issue. I have tall plants (mostly vals) so it works pretty well.
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post #4 of 49 (permalink) Old 07-18-2013, 10:11 PM
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I'm running a Current Satellite LED+ as well, on my 55g. Doing fine with low/medium light plants. I'm using the 48"-60" fixture (light itself is 48").

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post #5 of 49 (permalink) Old 07-18-2013, 10:47 PM Thread Starter
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Thanks for the tips, folks.

Will continue updating the main post as people chime in.

And if there are additional common tank sizes I should add, please let me know.
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post #6 of 49 (permalink) Old 07-19-2013, 01:50 AM
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Maybe next to each tank size (which is in bold and underline) put in parentheses the dimensions of the tank (L x W x H). Then people can get a mental image of the height and take into account the substrate, etc. Here is a good chart of tank sizes:

http://freshaquarium.about.com/od/aq...zesweights.htm
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post #7 of 49 (permalink) Old 07-19-2013, 02:51 PM
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Mr. Aqua tank light options. Looking into 7.5g light ideas.

18g (Red Cherry Neo Shrimp | Malawa Shrimp)
7.5g (Yellow Neo Shrimp)
3.2g (Pumpkin Neo Shrimp)
2g (Snails)
11.4g (new home soon for the Pumpkin Neos)
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post #8 of 49 (permalink) Old 07-19-2013, 02:54 PM Thread Starter
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Focusing on conventional, common tanks with rims.

Rimless tanks from sellers like ADA, Mr. Aqua, AquaTop and such tend to be much more niche in the hobby.

Once this thread has more data, I'll start one for less common rimless tanks.
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post #9 of 49 (permalink) Old 07-22-2013, 08:12 PM
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Sticky!

why isnt this a sticky?!?!
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post #10 of 49 (permalink) Old 07-22-2013, 08:21 PM
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Hopefully it will be once more people contribute! I vote for sticky-ing it as well!

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post #11 of 49 (permalink) Old 07-22-2013, 08:24 PM Thread Starter
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It can be linked in the Lighting Sticky once it contains more information.
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post #12 of 49 (permalink) Old 07-22-2013, 08:56 PM
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ok cool. well i posted a question about if a fugeray would be best for me and no one is answering lol. but then i found this so maybe thats why...
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post #13 of 49 (permalink) Old 09-10-2013, 11:56 PM
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Can this please be a sticky!? I've been researching for hours on TPT until I found this! Gahh!
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post #14 of 49 (permalink) Old 09-11-2013, 12:01 AM Thread Starter
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The plan, as mentioned above, is for me to add this to the sticky once we have more data added.
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post #15 of 49 (permalink) Old 09-11-2013, 12:17 AM
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I run a dual t8 shop light on my 75 gallon. Crypts, Val's, swords, dwarf sag, bacopa, hygro sunset, l. repens. Good growth on everything
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