My Anubias grow like crazy with no ferts, i also had ferns that grew just as fast without ferts, but i also have a 48" led fixture with every light spectrum and lots of it I have 80,000k (Kelvin rating) Cool white (daylight) 1800 nm actinic blue, 2000k red, 13,500k warm white (specefic for plants) and green but i cannot find the spectrum for them
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