Hmm. It never did reduce nutrients as much as advertised, survival of the most watery perhaps.I don't know if you realize this, but 15 grams dry weight of cheato removed is the equivalent of exporting 0.36ppm of phosphate and 22ppm of nitrate in a 100 gallon aquarium. Its also 5 full sheets worth of nori. It's actually pretty substantial.
You probably don't need anywhere near 120w to get that amount though. There are some pretty substantial refugium lights that only pull about 20W.
Edit - I never did try drying it out properly, just like most other folks. We used to just let it drip for a few seconds and throw it on some scales, lol. I liked algae back then
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