Also in terms of "disco ball" be aware the radions will present their own issues with the multiple color LEDs. It blends pretty good but you'll still see some effect. The sols cluster the three colors tightly together in each array so they should be comparable but they only really use two colors compared to 4 in the radions.
In either case my experience is it doesn't really matter if your tank is deeper than 12". It's a concern with small nano, the bigger the tank the less the concern.
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