I have ordered 10 Microrasbora kubotai (Neon green rasbora) which should arrive in about a month or so, dependent on when my lfs needs to put in their next order with that supplier. So I will not be increasing the CPDs. These have a coconut hide in bottom right corner, but to be honest, I often see them up and about with the chilis, especially around feeding time, or whenever I go near the tank. Not sure I want to add any more, as what I plan on getting is possibly a little more than I had originally planned. I have a larger filter than I originally put in there, but may be changing it to a sponge filter once the wood has become waterlogged and I need to remove weights etc.
I have root tabs underneath the sword and a couple of other plants in the gravel section, and some broken up bits under the grass plants in the sand. I also have an old fashioned oxygeniser plant pulled down low and not quite having it's roots in the gravel to hide the filter at the moment, but may be taking that out after continued water testing for nitrate over a number of weeks. I am also planning to get some more orange longer plants for the left hand side, probably medium sized and the lily bulb I have in there has just started to show roots, so that will be a red addition.
I am currently testing everything else weekly and logging it to look at pattern.