Re: [IWAGUMI] Scree Evolution - T8 lighting experiment Cheers George, i followed your experience with LED units vs red plants. I did not had a chance yet to try it on a larger tank so this is a really valuable experience. Will test it also with the TMC unit shortly. On Arcuata, somehow this is intensity related, but LED may just not have that specific range which is required to boost these high light red plants. This could be something like we experience with ADA NA Green HQI bulbs from ADA. There the intensity is good, but as the whole light spectrum is green, those red colors just not work with it. Probably the cold blueish LED does the same effect on some plants. The current T8 shows that the light spectrum is much better as the plant started to move to orange color. So just a boost needed for it. We used this plant sometime in the past with good success, and using currently too (one of my fav plant), but as Mark mentioned this is not easy to make it good looking. Bit slow, less dense etc but could go red if its ok. this is one of our past tank. Or you can mix it with Ludwigia Brevipes like the IAPLC 2009 Grand Prize winner did, to get that bushy effect.