2.5 gallon, 18 watts - enough for HC? - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 09-14-2007, 12:19 PM Thread Starter
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2.5 gallon, 18 watts - enough for HC?

I have a 2.5 and would like to plant some HC when I finish "cycling" the aquasoil. Will an 18 watt fixture work, or will I have to DIY something brighter? Any suggestions?

Also, I plan on doing CO2, if that helps.
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post #2 of 14 (permalink) Old 09-14-2007, 03:07 PM
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IMO, 18w isn't ideal, but it'll grow just fine. Expect it to grow a little slower and it may not stay as compact on the aquasoil as it would with a little more light, but I think you'll be fine.

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post #3 of 14 (permalink) Old 09-14-2007, 03:14 PM
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I have 10w over my 2.5 w/a small HC patch and it's still alive. It's not spreading, but it's alive.
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post #4 of 14 (permalink) Old 09-14-2007, 04:55 PM
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I had a 18 watt 67k/10k bulb over my 2.5 and it grew HC just fine with a little DIY co2... Theres a picture in my thread to give you an idea.


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post #5 of 14 (permalink) Old 09-14-2007, 06:03 PM
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FWIW, I grew HC just fine with 18W lighting.

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post #6 of 14 (permalink) Old 09-15-2007, 05:40 AM
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It needs co2

FUNction over form

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post #7 of 14 (permalink) Old 09-15-2007, 05:49 AM
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Quote:
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It needs co2
No it doesn't. Excel is fine. Although CO2 is highly recommended.


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post #8 of 14 (permalink) Old 09-15-2007, 05:56 AM
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Excel didn't really grow my HC too well. It kept it alive, but didn't really help it spread too fast.


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post #9 of 14 (permalink) Old 09-15-2007, 01:09 PM
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I have a 27w spiral on my 2.5 and it grows the HC like mad, i don't know about 18w though.

I've never used HC under co2, always excel, and have had great results with it.

-Devin-
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post #10 of 14 (permalink) Old 09-15-2007, 01:18 PM
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Quote:
Originally Posted by sandiegoryu View Post
No it doesn't. Excel is fine. Although CO2 is highly recommended.
Excel is the same thing but liquid form.....

FUNction over form

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post #11 of 14 (permalink) Old 09-15-2007, 01:56 PM
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BASICALLY, yes.
It's a carbon source.
But chemically no, excell is not CO2, it's an organic carbon source that the plants take up more readilly than [email protected], this is why plants don't pearl quite as much with excel.

-Devin-
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post #12 of 14 (permalink) Old 09-15-2007, 01:57 PM
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Oh yea, what kind of lighting are you gonna use?
Coralife mini, compact screw in, small quad?

-Devin-
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post #13 of 14 (permalink) Old 09-15-2007, 09:36 PM Thread Starter
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I was looking at the Mini Aqualight, and was thinking of running one 67k and one 10k bulb (normally they are two 6700ks).

I was going to use Excel and CO2.
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post #14 of 14 (permalink) Old 09-15-2007, 11:30 PM
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2x 67K would be better, more in plant range.

the thing about the aqualight is it has a decent reflector if i'm not mistaken, meaning it probally is better than my 27w spiral setup, so you should be fine with it.

-Devin-
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