Don't worry about "nit picking" Adam, all suggestions gratefully received! I was thinking about getting a heater guard for the 4ft tank because the plants keep getting burnt... and I have an Oto in another tank that burnt his nose... I've seen them everywhere and they are cheap. I don't know why I haven't bought one before now... Maybe I'll sort that this weekend.
I am the most snap-happy fishkeeper there ever was. I'm on another forum where everybody shows off pictures so I am never without my camera when I'm near my tanks. Don't want to miss the moment!