3.1 wpg enough in 75cm? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 11-04-2007, 09:33 PM Thread Starter
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3.1 wpg enough in 75cm?

Ok, I currently have a Coralife 2x65w PC fixture waiting in the wings to be placed above my 29 gallon. I've been contemplating selling it and buying an ADA 75cm and placing the fixture above that. I want to be able to grow anything ranging from copious amounts of HC, to cyperus H., rotala rotundofolia, rotala nanjean, urtricula g., and some needle leaf java fern (microsorum sp.) Until I had this idea of the 75cm everything was good. But now it seems that I may not have enough light for the plants to really thrive. The 75cm is 42g which would leave me with 3.1wpg, and I'm not getting rid of that fixture. If this isnt enough, I was contemplating getting a 2x18w t5 fixture to accompany the 2x65w PC. They are both 30'' and will fit perfectly over the tank... what I'm wondering is do I need the t5, or would the PC be sufficient. With the t5 the tank would be getting a total of exactly 4wpg, which is what I feel more comfortable with atleast right now. some opinions and valid arguments may be able to sway me, but 3.1wpg seems like a tad too little. What do you guys think?

other specs- pres. CO2, filstar xP3, ADA ferts and AS and PS, Manzanita via badcopnofishtank
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post #2 of 8 (permalink) Old 11-04-2007, 09:40 PM
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Quote:
Originally Posted by CmLaracy View Post
some opinions and valid arguments may be able to sway me, but 3.1wpg seems like a tad too little.
lol. Let's let Tom Barr chime in on this topic.

When I first started out on this forum, 2.5WPG was high light.

You'll be fine with 3.1WPG.
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post #3 of 8 (permalink) Old 11-04-2007, 09:50 PM Thread Starter
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hmmm.... interesting, that would save me a few bones
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post #4 of 8 (permalink) Old 11-05-2007, 08:27 PM Thread Starter
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any more input on what I should do?
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post #5 of 8 (permalink) Old 11-14-2007, 04:48 AM Thread Starter
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bump, I'm strongly considering adding the T5 for 4wpg, what would you do?
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post #6 of 8 (permalink) Old 11-14-2007, 01:31 PM
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Sounds like too much light to me (4wpg). I run 2.36 wpg over my 55g. Plants are pearling everyday and look great. I also have a mid day burst of 4.72 wpg for 2 hours but I am considering cutting that back to 1 hour. I haven't gone through with the change yet because the plants are doing so well.

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Equipment: 55g, 3x 9watt tt uv, 2-xp3's, pressurized co2, inline co2 reactor, 216 watt catalina t5 fixture, milwaukee ph controller, 300 watt hydor inline heater, aqua soil
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post #7 of 8 (permalink) Old 11-14-2007, 08:47 PM Thread Starter
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yeah, I was thinking of using the extra T5's as an afternoon burst.
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post #8 of 8 (permalink) Old 11-14-2007, 10:04 PM
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stick with what you got. you will have algae problems as it is most likely.

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