Lighting for a 45 Gallon - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 7 Old 07-29-2007, 03:35 PM Thread Starter
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Lighting for a 45 Gallon


I just bought the following fishtank set-up from someone on Craigs list.

Tank - 45 gallon 36w x 12d x 24h
1 -placo (about 9 inches)
4 (Parrots) all about 4 inches

the whole setup

I went out and bought new
Filter - Aquaclear 300
Heater - 200w

I also gave my friend two ofthe Parrot's and I am getting rid of the Placo.

I would like to plant live plants. I went and talked with a local pet store and the guy their said since I have a 24 inch tall tank I should get a 110 watt compact florescent light from all-glass.

Ok that is the background now for the questions.

1) Is that light that was reccomended correct?
2) What other kind's of fish would you put in a tank setup like this?
3) any particular plants to look into or avoid?

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post #2 of 7 Old 07-29-2007, 04:47 PM
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Lighting depends on what types of plants you are looking at. Crypts, anubias, aponogetons, ... are all low light plants and can tolerate 1-2 W per gallon. For medium light plants, you will want 3-3.5W/g and high light plants 4+.
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post #3 of 7 Old 07-29-2007, 09:24 PM Thread Starter
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Thank you for your response. I think the light that he recomended will cover close to the 3w per gal. But the reason he recommended that one was so it will reach the bottem of the tank. I am new to the live plant's and would like to know if that is a good choice (lets say I want to keep my options open on what I want to plant) or is there a better light type to use or more watts?
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post #4 of 7 Old 07-29-2007, 11:43 PM
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The most important thing is to know the light intensity and spectrum requirements of the plants or animals you plan to keep in your aquarium.

There's a Lighting Chart on the bottom of the page.

Acute sufferer of "GHMT"........(Gotta Have More Tanks)
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post #5 of 7 Old 07-30-2007, 11:03 AM
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If it's under 3W/g, you're limited to low light plants. Most low light plants, such as crypts, are pretty easy to grow. There are a number of plants that would do well and some plants like wysteria love nitrates so are beneficial to the tank. GW's link has specifics on which brands to get, so you can get an idea if you know what your LFS has.
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post #6 of 7 Old 07-30-2007, 11:54 AM
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Lief your right...some low light plants grow very well!
My lighting on my 29g(18" deep) is only 1.61w per gallon.
I'm using the Marineland "Eclipse" 18w 24" T8 "Natural Daylight" Fluorescent Bulb.
The Hybrid Aponogeton and Dwarf Lily love it 8)
Would they do better with stronger lighting...probably but just by the way their growing you could not tell it!
Find out what plants you want...find out what lighting will provide what they need.

Acute sufferer of "GHMT"........(Gotta Have More Tanks)
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post #7 of 7 Old 07-30-2007, 03:21 PM
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Another thing to take into consideration is that your 45 gallon tank is a very tall tank. Therefore the middle and upper parts of the water column will be receiving more watts per gallon than the bottom. Make sure that the foreground plants you put in dont need as much lighting as the background and middleground plants.
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