Sam im sorry for not replying to this thread earlier, i post here everyday and i missed this thread, i feel dumb
anyway the tank looks fab, looks really cool it will look excellent when it grows in.
How much HC did you origionally buy, it looks like a lot in the pics. When i planted mine i planted it deeper into the substrate, just to stop it uprooting, and when new bits started growing upwards i would replant those as well to keep the carpet low, but your lighting will do that for you as well, but no harm in giving it a helping hand. You seem to be starting off with a lot so i dont think it will take long to fill in. I only bought one pot, so i made it really stretch.
In good light it will do really well, in lower light areas or areas in slight shadow it grows much more slowly, but i dont think you have to worry on that score, i find it very easy to grow, in about a month it should be practically carpeted in your tank, when it starts growing really well just give it a trim like a haircut to stop it getting to thick as it will grow over itself in the same way as glosso, when it fills in its a beautiful colour.
Anyway good luck with it, i will definatly be checking this thread again.......real soon.
EDIT: just a quick edit, because this is a new tank you will probably have to go through the brown diatom stage which will really make the tank a mess, i set up a small tank on the 26 January with the new 2211 filter etc and the tank was a mess for at least a month its only in the last couple of weeks that the diatoms have cleared and now im having trouble with hair algae, this is all got to do with new tank syndrome and basically you should expect this as well, just dont be disheartened if the lovely HC gets covered in gunk, just do your best to keep removing the diatoms daily (which wont be easy without uprooting the HC) keep dosing the ferts and especially watch the CO2. This will pass after about a month, but when you are in the middle of it, it seems like it never will.