I'm a Newbie on this forum but wanted to add to my post above. The new sideshoot growth on this Ludwigia 'super red' is small and curly looking on a couple stems which looks like a deciciency. Am using liquid carbon daily and using tnc complete once a week. There's a root tab or two in the vicinity of these. Light on 4 hours in the AM and 6 hours in the PM. Any thoughts greatly appreciated.