South American Tank - Littlefish

As I had pretty much trashed the tank removing Harry the bristlenose plec after I saw him being nipped by a penguin tetra, and not really done anything about it as I was also using the tank to store some of the plants I was collecting for the puffer tank rework, I decided to try to have a bit of a tidy up over the weekend. After I had completed the puffer tank, was part-way through working up the tiger barb tank, and was clearing out the temporary 70L tanks, I could finally review what plants I had left. I had more of some than expected, so decided that it was time to treat the hatchets and tetras.
The wood pile at the back right is the amano shrimp area, which has always been there, but I added some more pieces. The shrimp venture all over the tank, and seem to be enjoying standing on top of the large rocks, but most often hang out in their patch. The penguin and glass blood fin tetras seem to enjoy swimming through the plants, as well as having a fair amount of open swimming space. I was always under the impression that the silver hatchets liked a lot of cover as they were surface feeders, so was quite pleased with the bulbs (can't remember what they are called) that grew the reddish heart shaped leaves that float on the surface. Those bulbs went crazy, so the foliage had to have a drastic trim, and I had to split off some of the growth to plant in another area, but they are quite pretty plants and they offer good surface coverage, along with the frogbit, to keep everyone happy.
I'm going to have another rummage through the plants that I still have spare, so I can plant more along the back because I'm not keen on the background, but can't get behind the tank to change it.
As for the fish, bless their little fins, they tolerated several hours each day with me shoulder deep in their tank replanting and rearranging. For relatively nervous/jumpy fish they've made it through the weekend without incident. 

Thanks Colin.
I think I'm getting a bit restless waiting for the big tanks to be delivered. I hope I can reign myself in and give all the fish a rest from all the replanting for a few weeks now. 

Brilliant!
Do you recommend any plants that my cories and whippies won't uproot! The hatchets look nice!
Shame about harry, tetras just nip because fo their nature and i hope hi is doing well in his other tank!