Advice on the right PL for my Fluval Edge - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 02-01-2013, 06:34 PM Thread Starter
Algae Grower
 
Join Date: Jan 2013
Location: Bristol
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Advice on the right PL for my Fluval Edge

OK so I've just done this:



This isn't my actual tank, but I've done the same modification with a spare base.

This gives me a lot of under hood real estate for a PL bulb. But I'm a bit of a novice in this, so need some advice on what to put underneath it.

I've found this bulb, it's a 26W daylight PL bulb:

http://www.amazon.co.uk/Philips-MAST...9741972&sr=8-5

My worries - Is it sufficient to light a heavily planted tank on it's own?

Will I have to consider ventilation (do these generate a lot of heat?)

Thanks
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post #2 of 6 (permalink) Old 02-01-2013, 08:02 PM
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I'm not an expert on Fluval Edge's by any means - but it looks like that one has the original halogen bulbs. Is it the 6 or 12 gallon? I would be very worried about putting too much heat into the tank by adding anything and running the original halogens. Have you considered LED?
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post #3 of 6 (permalink) Old 02-01-2013, 08:53 PM Thread Starter
Algae Grower
 
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I currently do have two Mr16 LEDs.

These are an upgrade to the smaller mr11 LEDs that are supplied with the tank.

I don't want to go down the LED route further as the par levels on them compared to fluorescent are poor, meaning a heavily planted tank would suffer.

The modification I've done is added the extra tier of hood (the one that doesn't have the grill on top).

I want to know what fluorescent bulb I should put in there and what I can get away with in terms of ventilation requirements (or lack of) and wattage.

I hope to only require one fluorescent bulb, leaving me the option to change the led bulbs to blue bulbs for night time ambience.

It's a 6 gallon by the way
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post #4 of 6 (permalink) Old 02-01-2013, 09:29 PM
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If you're dead set on Fluorescent, you might want to try fitting the fluval power compact 13W driver and bulb from the Flora/Ebi line in there. I would recommend ventilation. One idea is to put a small 40mm computer fan on the back of the nice enclosure you built on the left, and cut some ventilation holes on the back on the right. That would pull air around from the right, over the light and balast, and exhaust it out on the left. It might be a little noisy, but it would work.
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post #5 of 6 (permalink) Old 02-01-2013, 09:36 PM Thread Starter
Algae Grower
 
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I'm not dead set on fluorescent, I've just been recommended this over LED due to poor par levels produced by LEDs, as I want a heavily planted tank (albeit will be selecting easy to maintain mid to low light requiring plants).

Yeh the noise worries me about a computer fan, as the tank is in my living room so will definitely be noticed.

Will one 13w by sufficient for a heavily planted tank? Is 26w too much for 23L?
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post #6 of 6 (permalink) Old 05-05-2013, 02:09 AM
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Whoever advised you against LED is probably looking at several generations ago. Modern LEDs are being used in favor of fluorescents all the time. Many of the marine reef applications also use LEDs. They compare favorably with the metal halid bulbs for everything but the very deep reef applications, ie they can sub for a 250 watt MH but not for a 450 watt. I think you should be able to find lots of LEDs that work.
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