Just looking at the Seneye monitoring device and one thing i like on the reef version is the light meter
It measures LUX, Kelvin and PAR
GHL should have a monitoring device like this, something that just floats on the top of the water or a kind of arm that could be mounted on the side and swing over the tank.
I would love to be able to measure kelvin and PAR, would be good to know when to change out T5 or MH bulbs
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