New 75 gallon lighting - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 02-29-2004, 03:10 PM Thread Starter
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I picked up a new 75 gallon tank to replace the 30 gallon I have now. I'm really puzzled on what to do for lights on the new tank.

The 30 gallon had 2x36 watt compact flourescents that did an excellent job. With about 2.5 WPG, I had great swords, crypts, wisteria, anabuis, and sessiliflora. Really liked the cryts.

For the 75 gallon, I can't decide if I should use 4x55 for 3 WPG or 4x32 for 2 WPG. I'm looking to grow the same low to moderate light plants.

I haven't mae the jump to CO2 yet and my fish are a group of crazy goldfish.

Any comments would be helpful...

Thanks

Johnny B
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post #2 of 6 (permalink) Old 02-29-2004, 05:00 PM
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If you have the lights from your 30 gal available, I would use those and add 2 55 Watters.

If you go with 4x 55W, you will need pressurized CO2 and nutrient dosing IMO.

4x 32W isn't bad for a low light setup. It's also easy to overdrive in case you wish for more light. Difficult to find good reflectors for them though.
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post #3 of 6 (permalink) Old 02-29-2004, 05:23 PM
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You might want to take a fwe minutes and explore the types of plants you are interested in growing. If the plants you are interested in require low or high lighting, then your decision becomes easier!

Goldfish can be rough on plants, so don't forget to take that into consideration!

Mike

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post #4 of 6 (permalink) Old 02-29-2004, 05:39 PM Thread Starter
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Minor mistake on my part. My current 30 gallon lights are a 2x36w PC light kit from AH Supply. I really liked this light kit. Easy to use with high quality components.

I will probably use AHS' 2x55w kit plus the existing 2x36w. Any thoughts on bulb placement? Will the tank seem unbalanced?

Thanks again,

Johnny B
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post #5 of 6 (permalink) Old 02-29-2004, 05:57 PM
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I would place the 36 Watters in the back, and the 55 Watters in front, like that, if possible:

************************
***+++++*******+++++***
************************
*+++++++******+++++++*
************************

That way low growing plants in the front get a little more intense light.
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post #6 of 6 (permalink) Old 03-01-2004, 04:00 AM
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Sorry for intruding.

I will have a new 50G tank (40inLx14inWx22inH, CO2 injection), it is going to be densely planted, and I want to use two 36W PCs and two 30w 3ft T8s. Would the PCs turn out to be too short and not provide an even lighting? Which array would be best?

_______________________________

===========================
PC-PC-PC-PC-PC........PC-PC-PC-PC-PC
===========================
_______________________________

This is my guess, but not definite.
Could it be too much light?

Thanks, and again, sorry for hijacking the post.
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