Alternanthera sessilis.

[ForestDave]

Hi.
I'm struggling with Alternanthera sessilis, it loses its vibrant pink/red color and goes brown. I've read that Alternanthera sessilis is mainly for terrainiums? Is this correct and am I flogging a dead horse trying to keep it happy, submerged in my tank? I Ei dose, CO2 is good (1.1ph drop on my cheapo PH pen and D/C is lime green), flow is good as the leaves ripple in the current and a filter intake is directly behind the plant. The lights are 35W T5s on for 5 hours a day, the plants surrounding it seem to be happy and growing well.
Should I simply up my Micro dose?
Thanks.

 

[PARAGUAY]

Without knowing the plant.Is it growing well otherwise? If so some of those super red colours come from high end lighting which accenuate the reds. Something l picked up in a couple of UKAPs journals amd l thing mentioned by Green Aqua in a lighting tutorial perhaps one of our lighting gurus might add

 

[ForestDave]

Thanks. It’s hard to say how well it’s growing as it’s only been in a few weeks. I had one in the same position before which was planted 3months ago. The flow wasn’t as good then and it went brown and didn’t seem to grow so I pulled it out after 2 months. I was thinking it could have been CO2 deficiency but I’m pretty sure that’s not the issue now.