Trying to make an informed decision - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 04-01-2007, 06:00 PM Thread Starter
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Trying to make an informed decision

I've got a nice little low light tank growing with some Anubias, java moss, what I think is called Crinum thaianum.

Anyway, I'd like to branch out -pun intended, and I'm looking for advice on lighting.
Is there a practical difference between the following lighting schemes?

http://indoorsun.stores.yahoo.net/26watt.html
I'm looking at two 30 watt bulbs of the 6400K model screwed into an aquarium reflector kit.

Or

coralifefreshwateraqualight24powercompactlight1x65 w

A couple of questions on top of that.
the 6400K -6500K range is good for growing plants but will I need to supplement with 10000K to get good color from plants and fish?

And will simply upping the light without adding CO2 cause more algae problems? I want to avoid CO2 if I can. I'm using Excel Flourish.
Thanks
Pairustwo

Last edited by pairustwo; 04-02-2007 at 03:15 AM.
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post #2 of 4 (permalink) Old 04-02-2007, 05:53 AM
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Definately go with the Coralife. And it only comes with one lamp. You'll be very happy with the 6700K freshwater power compact. I have one on a 25 gallon and basically zero algae there with no CO2 on that tank.

Its way way cheaper at the Drs on sale for $51.00 + shipping. And I really like these hinged light holders (Adjustable mounting legs) I have on mine... But you have to have an open top, no glass to use them. If you have suicidal jumpers like Hatchets which require a top, you'll need the clear legs.
http://www.drsfostersmith.com/produc...m?pcatid=13732

Here is the light (fresh water version of course).
http://www.drsfostersmith.com/Produc...&N=2004+113345





Three Tanks...Eheim 2128 & XP3-90G, Eheim 2128-65G, Eheim 2232-25G.... Tek 4x54 watt T5-90G, Aqualight 96watt PC 65G low tech, 65 watt Aqualight-25G.... Hydors-90G & 65G ... Flourite in 90, 65, & 25 Gallons, .... Auto Water Change/Auto dosing on 90 & 65 gallon..... AGA member......
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post #3 of 4 (permalink) Old 04-02-2007, 01:34 PM Thread Starter
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Thanks for the reply.
And thanks for the price tip. When I started looking I was seeing prices for 60w of CF lights in the hundreds of dollars.

Any word on why one choice is better than the other.
With price as the only consideration I still see the screw in CF lights as a much better deal, but no one seems to use them. There must be some other deficiency in these type of lights.
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post #4 of 4 (permalink) Old 04-02-2007, 02:32 PM
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I believe the power compacts operate at a higher output, similar to HO T5s (High Output T5s). I'm not sure you would get enough light with those screw in normal outputs to keep algae at bay. They might work, but if it was me, I would go with the Coralifes. The unit looks good too. And the mirror finish reflector is a big part of aquarium light brightness.





Three Tanks...Eheim 2128 & XP3-90G, Eheim 2128-65G, Eheim 2232-25G.... Tek 4x54 watt T5-90G, Aqualight 96watt PC 65G low tech, 65 watt Aqualight-25G.... Hydors-90G & 65G ... Flourite in 90, 65, & 25 Gallons, .... Auto Water Change/Auto dosing on 90 & 65 gallon..... AGA member......
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