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Discussion Starter · #1 ·
Hi guys, I need some help in identifying if the light in my 50 gal (36x18x18) planted tank is considered medium or high. I'm using Odyssea T5 HO 2 39W and both bulbs are 6700K. My substrate is about 2.5 inches thick and my light fixture is right on top of the tank; no glass covers. I have read this article and it says that my tank's PAR reading is around 50 to 55 PAR. ( Would I be able to plant HC in my aquarium with this kind PAR reading?

Your advise is greatly appreciated.


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