No problem, cS

hard to guess it right from the handle some times, but its actually my real name.
I would agree my 3wpg PC over 100g is brighter than the 3 wpg cf in the 10g for sure. We probably went overboard a bit in the persuit of growing "highlight" plants.
Yes, it is some Marselia on the right side. It is doing very little, the glosso is taking over pretty soon. It will probably take 4 months to get the full carpet out of glosso under this condition, but that's the idea of a slow, low maintanance tank. I can only keep glosso looking good for 2 months max in my 100g CO2 enriched tank, don't know how to maintain it aferwards.
I unknowingly let NO3 drop to 0 and some plants had stunted growth. With NO3 addition, plants are growing surprisingly fast. A little too fast for a slow tank. I might stop Excel soon.
Toninas are new plants to me. These plants might have a relatively low tolerance of kh/gh, but maybe not as low as commonly believed. In 100g kh=8, gh=13, 10g kh=4 gh=8(played with RO and Ca addition). I put 1 stem of t. fluviatilis in my 100g and 10g respectively. the stem in 100g grew twice as fast as in 10g, but I noticed the lower leaves are turning brown. The stem in the 10g is greener, does not look stressed. I suspect the lower hardness does play a role here. I can lower the hardness in 10g further if necessary, it is easier to experiment with a smaller tank. I also got some tonina sp. 'belem' a week ago. Looks like the stems in 100g is experiencing some melt down, while the one in 10g is still green, it might even be trying to grow a bit. Again, hardness might be an issue.
But I don't want to conclude too early yet. I have struggled with several plants in the 100g in the past, but eventually I have figured out(Ca addition even with high gh): rotala macrandra, r. magenta, r. wallichii, nesaea sp. I could have drawn some wrong conclusion: they don't do well in my warm discus tank at 83F, but that was not the real cause. I like the challenge of growing difficult plants more than aquascaping at this point. Its about patience, changing one parameter at a time and wait, wait, wait, at least for a few weeks.
I will move more and more difficult plants into my 10g experimental tank and will be posting update pics in the PT forum from time to time.
So is there a plant you can't grow? I might want to try it
