This RAIN2 with two GEM5 lights has more PAR to grow algae than other scrubbers that use big Chinese lights. This is because the GEM lights are made of an expensive material that handles the heat and is submersible too. It's not metal.
This RAIN2 with two GEM5 lights has more PAR to grow algae than other scrubbers that use big Chinese lights. This is because the GEM lights are made of an expensive material that handles the heat and is submersible too. It's not metal.
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