And,,,,to have healthy plant's under intense lighting, one better be able to provide some carbon (CO2), and nutrient's on par with the light energy being used.IMHOhttps://www.youtube.com/watch?v=y4WNMBKKVjU
It is mostly about intense light and plants need to be VERY healthy
I did an experiment following the suggestions in the video. Results: nothing - plants were no redder than they were before. Conclusion: the video provides a lot of fanciful talk that sounds convincing but is just that, fanciful talk with no results. It was not high light intensity, temperature, or the increase in fertilizers, low nitrogen, etc.https://www.youtube.com/watch?v=y4WNMBKKVjU
It is mostly about intense light and plants need to be VERY healthy
Hmm, this must be why my Ludwigia (dirted, occ excel) and AR mini (sand with ferts in substrate, occ excel too) growing in the basement north-facing windowsill (frosted glass, no direct light at all) has the best colour out of all the plants (in various artificially-lit tanks) that I have.I did an experiment following the suggestions in the video. Results: nothing - plants were no redder than they were before. Conclusion: the video provides a lot of fanciful talk that sounds convincing but is just that, fanciful talk with no results. It was not high light intensity, temperature, or the increase in fertilizers, low nitrogen, etc.
So I did another experiment which I've written about in other forums (ASW, AquaPetz). I removed a dozen 6500K LEDs and replaced them with full spectrum LEDs, LEDs with very high red spectra. Results: in less than a day, plants turned noticeably redder. All new growth had considerable red content. Conclusion: it is specifically red spectra that induced the production of anthocyanin, not the intensity of light, fertz, temp, etc. It appears that a natural spectral curve is all that's needed; adding more red spectra won't produce any more anthocyanin than it's capable of.