Par Level for Red H’ra

Joined
29 Jul 2017
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96
Location
South West London
I’ve been wondering what PAR level you need for the reddest H’ra. I assume with decent flow and proportionate CO2 and Ferts, PAR is the main reason for red colours. So if you grew it and know the PAR values of that aquarium, or if you know what sort of range would suffice I’d be interested.
 
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