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- Feb 22, 2018
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https://www.aquariumcomputer.com/usa/product/kh-directorghl-doser-2-1-sa-4-pumps-white-combo/ (blue knobs) on kh director , and blue GHL on top seems to be different from i have received.. am i missing something ? Perhaps the GHL lits up from leds ?, and what about the blue knobs on the director ,currently letting it sit a while , precautions to viruses. thanks beforehand