The Planted Tank Forum - View Single Post - upgrading lighting
View Single Post
post #2 of (permalink) Old 12-11-2012, 10:11 PM
Darkblade48's Avatar
Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 10,179
Rather than thinking about lighting in terms of wattage, it is best to think about it in terms of photosynthetically active radiation (PAR).

Here is a good article written by Hoppy regarding the topic:

PAR vs Distance, T5, T12, PC - New Chart

You can determine how much light you will have at substrate level using the chart.


A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
Darkblade48 is offline  
For the best viewing experience please update your browser to Google Chrome