I have a low tech 20 gallon tall with fertilizer. The incidence of light looks great and the plants are happy. The light feels a bit hot (doesn't feel hot) compared to mainstream/mainstream brands. Great value for money at the moment. Hope this lasts a while. I will update if there are problems. Buttons work fine. I don't understand how people can have control problems. Pretty straight forward and follow by accident until you know how it works. It's probably not worth running this at 55 gallons or 29 gallons as they're too tall.
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