This might help you. I took PAR readings of my mother colony. It’s under a Radion XR30 G5 Blue. I don’t test my water in this tank so I don’t know the parameters. It’s probably very high nutrients since I haven’t changed the water in months. Color is not as pink since I run my lights on the whiter end of the spectrum. Sorry, no frags available at the moment.
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This is probably the cottony PE you are talking about. The stalks with higher PAR look more cottony vs the stalks with less PAR.
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