The Planted Tank Forum - View Single Post - Attempting a DIY LED fixture - Part 2. New pics 9/27 (56k)
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post #10 of (permalink) Old 02-09-2009, 08:21 PM Thread Starter
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Location: Illinois
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Originally Posted by evilc66 View Post
Can I ask what your goals are for the tank? This will help decide if the array will fit your needs. You have a good start, but it may need a little tweaking.

You mentioned that you are looking to replace 2 T5s, but don't state wattage. Also you haven't stated your tank dimentions. This info will help shape things.

Epic, thanks for the plug
Currently I have 1 65W 10000K T5 per 22 gallon tank. It is about 3 WPG but not sure if that is the right way to measure. My tanks are 24" L X 15" W X 18" deep.

The light bars are 8" inches above the tank surface and the average depth of substrate is about 2.5 to 3 inches". So I did my calculations of the light spread at the substrate for a depth of 8" + (18" - 3") = 23". I actually calculated for 22" just to account for slopes.

I am doing my own calculations to determine PAR at the bottom but they will be highly approximated. Please suggest liberally

Let me know if I am missing any other information.
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