Ok so I think I have a final idea on stocking for the aquariums, the main is going to have 6 diamond tetras, 4-6 panda corys, a couple of ottos and probably a dozen or so neons,
The mini me tank isn't going to be a biotope and have a dozen or so spotted blue eye rainbow fish (those i know i can get) and a betta (girlfriends choice) with an otto or two for algae clean up.
The first tank is up and running, I picked up some amazon frogbit (they are for the main tank when it's up and running) to slow down any algae, the light wont be on either, that was just for the photo, it should get enough natural light to survive.
I think I should have washed the sand a bit more than I did, it went a little cloudy... I've learnt for the big tank though!
I'm going to make the bottom tank more rocky than the top, I don't want them looking too similar. maybe granite angular rocks as opposed to the river pebbles in the top, any thoughts?