Hello, I am new to lighting and seriously need so help. First off, are there any good websites out there that nicely and clearly explain lighting for the planted tank ( what is PAR? Etc, what is K?). Also, for my tank, I am looking for the best light at 2WPG for a number of my plants ( not sure how that converts to PAR). I currently have a Fluval 29 gallon long with the hood it came with. It had a fluorescent in it that is only 25 watts. Any suggestions would be great. Thanks.
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