Just back from my final field trip... frankly amazed by how good the tank is looking after 6 weeks of only fish feeding and water top ups by flatmates. Everything is growing in nicely and there's nothing unsightly except a smidge of green spot algae to clear up, which I was worried about as I lowered the light 6 inches before going away.
However, the experimental pond plants have all died off, sadly. So, needs a bit of a rescape to reintroduce some height to the back corners, but otherwise pretty happy so far. Will post more pics once my LEDs arrive and I've sorted a more elegant lighting rig next week.